Hello Dave,
No offense to the others, but I'm not sure how they manage to have their bikes shift reliably with their cables in those configurations. It might be hard to see, but with Campagnolo, you need to have enough derailleur cable housing "slack" so that the housing crosses like in this photo:
In your photo, the cable housings are too short which is what is causing your steering problems. The Campagnolo manual refers to this kind of problem but the manual does not specifically show how much slack should be in the cables.
Also with the housing as short as yours and dekalbSTEEL, the bike will "autoshift" if you have an extreme steering angle. It is rare that you would steer that sharp, but if you are making a U-turn on a narrow path, the short housing will pull the cables and the derailleurs (rear especially) will start to shift.
Take a look at any head-on bike shot in CycleSport or on the PezCycling web site (
http://www.pezcyclingnews.com/?pg=pe...pelopics-may06) and you will see that every pro bike with Campy has the housings cross in front of the head tube.
Lastly, it took me a little while to figure out what Jakey is suggesting and it seems that he has enough slack in the housing to alleviate the steering and autoshift problems, but it is not the common configuration for setting up Campy derailleur cable housing.
Oh, and part of how I learned all of this was by doing the same thing that you did back in 1995 when I got my first Ergopower group. Back then new cable housings and cables were "only" about $20.
Hope this helps.