I've got something to add about saddle choice. I work at a LBS, and I recently learned that the curvature of your lower back is a good indicator of which saddle-style should work for you. If you have a straight back, go for a flat saddle (Arione, Speczd Toupe, etc), if your back has a more pronounced curve, you would probably be more comfortable on a saddle which also has a curve (Turbo, Concor, Romin, etc).

That might also explain why Scrod loves his Turbo, but can't stand the Arione!

Of course the best method is to try out as many saddles as you can, but with this rule of thumb you can rule out a lot of potentially uncomfortable (for you) saddles!