I just thought I'd point out the OP post is from 2002. The first post in 2008 is asking about
this Cannondale touring bike only available in Europe. It's quite different than the T800 & T2000 you can buy here.
I've test ridden the derailleur version but not the Rohloff. On road only.
26 x 2" Marathons, headshock with lockout, all the usual braze-ons.
The ride is pretty similar to a hybrid-ish Cannondale MTB I quite like, the Terra. Stable on road, handles like a road tourer pretty much. You can do tighter turns due to no toe overlap, but it dosen't have the really fast steering of some MTBs.
It is comfortable to ride except that the flat bars are not quite to my liking. I prefer bar ends to the ergon grips.
The headshock dosen't bounce too much, but can be locked out with a lever on the stem. Seems to work OK over speed bumps and cobblestones. Not sure about off-road or drops though.
If you're happy with the headshock it seems a very good MTB tourer - expensive though. I think I prefer it to the Koga Miyata world tourer because I'd want the standover clearance and the suspension for an off-road tour. I guess the advantage of the Koga is no worries about finding a headshock if anything breaks down.