One thing that is consistantly ignored, especially within the SSFG community, is saddle setback. Most of us riding track bikes on the street don't know that the steep seat tube angles on track frames place your hips closer to the BB than would be ideal (unless you're on a track). Standard road bikes usually have 71-74° seat tubes, while track bikes have ~76°. If you really want to be comfortable riding a bike for a while on the road, try imitating road geometry/positioning. For track bikes, this usually means a very set back seatpost (like more than 20mm), to get more of your weight distributed towards your butt. You'll probably also have to drop your saddle a bit too to compensate, which is usually a good thing. With a more weight balanced riding position, you should be able to ride lower and in the drops more often.

It helps to read up on bike fit. Educate yourself, a good fit is probably one of the best "upgrades" you can do to your bike. Check out the Roadie forum, they usually have good fit info there.