WITH two trophies in the bag in pursuit of their amazing treble, Durham coach Geoff Cook reluctantly conceded that his one-day kings will have to concentrate harder on Twenty20 cricket next season.

At a time when they are producing more players for England than any other county except Lancashire, and are successful in all other forms of the game, Durham have the worst Twenty20 record among the 18 first-class counties.

But with an international tournament being launched in India at which the top two counties will be among eight teams battling for a mind-boggling $5m prize fund, Cook said: "The finance involved will produce an unhealthy bias towards Twenty20.

"The ECB try to keep a balance to the whole structure of the game, but this is a threat coming from outside which is quite frightening.

"We tried to make significant changes this season in terms of planning for Twenty20 and getting the right balance in the team, but it can be a bit of a lottery.

"This external money will put an onus on the competition which will imbalance the whole season."

Not that the players were worrying about the future on Saturday evening as they celebrated winning the NatWest Pro40 League second division title after parading the Friends Provident Trophy in front of 2,000 admiring fans.

They couldn't be presented with their second trophy because it had been taken to Taunton, where Somerset would have won the title had they beaten Middlesex.

But they lost by seven wickets, and Cook now expects his players to receive the trophy at the Professional Cricketers' Association dinner at the Albert Hall next Monday.

"Most of the team are going so it will be a nice occasion for them," he said. "Things worked out OK on Saturday with having the Sky TV presentation to Dale Benkenstein as man of the match.

"It was coincidental that we had said we would parade the Friends Provident Trophy whatever happened, but it was a lovely occasion with so many of the crowd staying behind.

"It was terrific for Durham followers and we had a good celebration afterwards in the dressing room."

Shivnarine Chanderpaul was due back in London last night following West Indies' early exit from the World Twenty20 in South Africa and he is expected to play for Durham in their final championship match at Canterbury on Wednesday.

One man definitely not available for selection is Neil Killeen, who tore a hamstring when bowling the final over of the 70-run win against Glamorgan.

Benkenstein had to bowl the last three balls of a match in which he ensured that Durham survived a mid-innings wobble.

They showed that they have the ammunition to become a successful Twenty20 side as they raced to 150 for one in the 17th over after being put in.

But then three wickets went down for one run and they had slipped to 203 for seven in the 33rd over when Liam Plunkett joined Benkenstein.

Plunkett thrashed 33 off 26 balls in a stand of 57 and Benkenstein's unbeaten 58 took the total to 271 for eight.

Ottis Gibson then continued his recent habit of striking in the first over of a spell as he clipped Richard Grant's off stump.

But from one for one a stand of 103 in 18 overs between impressive young Welshmen Gareth Rees and Michael O'Shea gave Glamorgan hope.

Left-hander Rees's maiden one-day half-century came off 47 balls with nine fours, but on 63 he was yorked by Plunkett.

Five overs later O'Shea was stumped for 49 off a leg-side wide by Gareth Breese, and once the required rate reached ten an over there was no hope for Glamorgan, who finished on 201 for nine.

Durham had 55 on the board after five overs against Andrew Davies and Alex Wharf, with Phil Mustard hitting Sky TV's giant screen over wide long-on off Davies.

He also struck five fours in reaching 36 off 22 balls before he skied an attempted pull to mid-wicket.

But the pace didn't slacken as Michael Di Venuto and Kyle Coetzer added 83 in eight overs, during which Coetzer drove Dean Cosker over long-on for six.

But after making 45 he was brilliantly caught by substitute William Bragg at extra cover off Cosker and in the next over Di Venuto pulled Robert Croft to deep mid-wicket.

The Tasmanian's 55 was his third half-century in the competition.

Gordon Muchall played forward to Croft's next ball and was harshly adjudged lbw by Mike Harris, forcing Durham to consolidate.

Ben Harmison contributed 18 to a stand of 33 before he was bowled trying to paddle Cosker to fine leg, and Croft kept the pressure on to finish with two for 29 from his eight overs.

He was replaced by another off-spinner in O'Shea and when Cosker had completed his allocation seamer Huw Waters was recalled after conceding 17 in his one previous over.

Breese pulled Waters to deep mid-wicket then Gibson drove him to extra cover and Waters claimed a third wicket when Plunkett drove him to long-off in the final over.

But there was still time for Benkenstein to smash what should have been the last ball over square leg for six.

Umpire Harris mistakenly ruled it a no-ball on grounds of height and Waters finished with three for 47 in five overs.

Cook said: "We didn't play with sufficient authority in the middle, but the top three had given us such an amazing start that we still had time to rebuild."