Warwickshire and Hampshire are both seeking to claim a second trophy of the summer in the CB40 final on Saturday 15 August - the 2012 season finale.
County Champions Warwickshire will be hoping to round of a superb season with a double which would place them among the finest teams the West Midlands county have ever produced.
Hampshire meanwhile will be looking to add to their T20 victory - the second for the county in three years - at Lord's, and will also have half an eye on their next challenge, the Champions League T20 which takes place in South Africa starting on October 9.
Despite Warwickshire having a stronger current international contingent, Hampshire's Danny Briggs is the only English player missing due to the ICC World Twenty20, which starts in Sri Lanka on Tuesday.
Warwickshire's squad has been depleted of its Irish contingent though, with William Porterfield and Boyd Rankin both in Sri Lanka ahead of the competition. They are blessed by the return of all-rounder and MVP Chris Woakes to take the new ball, after a brief stint with England, while Ian Bell's return more than softens the blow of losing Porterfield.
Jonathan Trott won't play however, after suffering a broken hand at Lord's in the recent victory over South Africa.
Neil Carter is one of a number of experienced players on both sides, with the Warwickshire all-rounder confirming his retirement following the match. He is joined by fellow 30-somethings Ian Blackwell (hoping to pick up a second unexpected trophy of the summer in the last match of his loan spell), Darren Maddy and Tim Ambrose - all of whom have international experience.
Varun Chopra meanwhile is one to look out for at the top of the order, having been talked about as a future England opener following his successful move west fro Essex.
Hampshire feature a talented overseas batting spine, with former internationals Simon Katich and Neil McKenzie due to come in at four and five. Sean Ervine will give it a thump from number seven, but Dimitri Mascarenhas is set to miss out with injury.
They will be hoping that the majority of damage will be done by a strong top order though, which also includes England prospect Michael Carberry, in-form James Vince and captain Jammy Adams.