Just as a warning, I have a set of those I throw on a few bikes here and there in the winter but they will move around just a bit. That wasn't a big deal however, road grime under the contacts will rub out your paint so I wrapped my stays and fork in electrical tape for the winter and it saved my paint. Other than that I like them for my bikes I don't want to leave full time fenders on, just be ready to adjust and think about wrapping your frame.
Serotta Colorado III Track (Renyolds Ouzo Pro Aero Fork, Dura-Ace to Mavic CXP-14 wheels, Sugino crank, Thomson and 3T the rest), Steelman Cyclocross (Campy Record 10, Deda Newton & Thomson stuff)
I don't foresee much of a rust issue as long as you wipe down the bike after getting it really wet. The inside of the steerer tube will get rusty since the fender doesen't cover it, but as long as you wipe it down it won't be anything that'll be a problem. If you didn't frame saver the frame, consider doing it, and make sure the seatpost is well greased, but the rear fender will help with that too. Other than the open bottom of the steerer (I think it's open on these forks, can someone confirm?) you'll have no other issues than anyone running full fenders. Lots of people run bikes like these all winter long without any fenders...I have and not had a problem. Just clean it up every once and awhile and keep the chain as close to clean as possible.
If it's going to be living outside, just make the sure the seatpost is really greased up well.
Not sure what the poster above was really referring to, steel bikes rust...yeah, you deal with it, it's not going to ruin the frame.