Honour my contract with New Client or Go Ahead with another Interview for More Money?

[ziggystardust]

Three days ago I was offered a contract with a client (whom I have worked for 7 years ago) via an agency. Credit/vetting checks have been started, including a Disclosure Scotland and I have been given a preliminary start date of the 31st October. The agency has produced a contract which is ready to...

[d000hg]

At least two banks are looking for contractors with my skills (Flex/Java), and although I didn't particularly get the feeling I was being fobbed off when I talked to an agency, it didn't go anywhere and I'd prefer to cut them out of the loop since I know who the clients are.
But I don't see any...