Please help me decide which model of the 3 Trek 7.3 FX to get.

2008:

Sizes: 15, 17.5, 20, 22.5, 25"
Frame: FX Alpha Black Aluminum
Fork: FX Alloy w/tapered wall thickness, straight blades

Wheels: Alloy front hub, Shimano RM60 rear hub; Bontrager Camino rims
Tires: Bontrager Race Lite Hardcase, 700x32c; 60 tpi

Shifters: Shimano EF60, 8 speed
Front Derailleur: Shimano C102
Rear Derailleur: Shimano Deore
Crank: Shimano M341 48/38/28 w/chainguard
Cassette: SRAM PG830 11-30, 8 speed
Pedals: Nylon body w/alloy cage

Saddle: Bontrager Race Lux Basic
Seat Post: Bontrager Sport
Handlebars: Bontrager Crowbar Sport, 25mm rise
Stem: Bontrager Sport, 10 degree
Headset: Aheadset Slimstak w/semi-cartridge bearings, sealed
Brakeset: Avid SD-3 w/Shimano EF50 levers


2009:
Differences:
Fork: Same fork but with "Clix dropouts" (whats that?)

Wheels: Alloy front hub, Shimano RM30 rear hub; Bontrager Nebula, 32-hole rims

Shifters: Shimano EF60 trigger, 8 speed (Same as 2008 but with the word "trigger" after the EF60)
Crank: Shimano M361 48/38/28 w/chainguard
Cassette: Shimano HG40 11-32, 8 speed

Saddle: Bontrager Nebula
Seat Post: Bontrager Nebula Basic
Handlebars: Bontrager SSR, 25mm rise, 6 degree sweep
Stem: Bontrager SSR, 10 degree
Brakeset: Avid SD-3 w/Shimano EF60 levers

Extras: Bontrager Satellite Plus grips


2010:
Differences:
Front Derailleur: Shimano M191

Saddle: Bontrager H1
Seat Post: Bontrager Nebula (Does not say "basic")

Extras: Does not say but most likely included.