hi i have bought an old gary fisher x-caliber and it could do with a few up grades, so what?
.brown lether sadle (i have seen a few on other peoples bikes)
.high riser bars and stem
.platform pedals (not spds)
.lock on grips
cheers

.brown lether sadle (i have seen a few on other peoples bikes)- charge spoon
.high riser bars and stem – easton
.platform pedals (not spds)- superstar/shimano dx/dmr ect ect
.lock on grips – superstar

To make a bike better, upgrade the wheels.

its got a good wheelset already so thats not a problem
cheers