best way to come up with a fair price for the clubs is to go to calloways used club site and see what they sell them for on there and maybe you can get a few $$ more because of the condition of them.
the best driver on the market right now would have to be the macgregor mac-tec 435. it is a little known club but i used one for most of 2005 and it hit the ball farhter than any other driver i have ever used and i used them all. i normally hit yonex woods but this club drove the ball consistantly 20-30 yards farther than my adx400.
best custom club out there would be the SMT OS. they are popular on the long drive tour.