I have a 1998 Trek 7000. There's a guy at work who wants to trade bikes because his 7000 is 18 inches and mine is 19.5. I agree the size is better for me but there's some component differences and want to make sure they're at least equal.
On mine, the stem and handlebar are Onyx, the brakes are Shimano deore LX, the fork is a Manitou SX, the seat post is Onyx, and the wheels are Bontrager Superstock.
On his, the stem and handlebar are Icon, the brakes are Avid AD-1-0L, the fork is a RS Judy XC hypercoil, the seat post is Icon, and the wheels are Kra-rim.
Both bikes are stock from Trek and his is one year newer.
Also, I'm 5'11". Does an 18" Mountain bike "sound" like the right size. It feels about the same to me as the 19.5" but I like the idea of having some extra clearance.