i've got a 2005 S32. its a great bike and very fast. also easy to adjust as a beginner. the frame and fork are really the best parts - which is good.
as i get faster and more critical i've upgraded the following:
vision tech base bar, carbon r-bend clip-on aerobars and aero brake levers
dura-ace derailleurs and brake calipers
carbon aero seatpost
zipp 999 race wheels
probably do the cranks and cassette next...
no need to upgrade that frame though...