CanyonCarver : The last pair I bought, I went for the double-throw-down $120 pair and haven't regretted it one bit. The extra money gets you better fit, better padding and better cooling.
Did you get the shorts by Assos (no pun intended, it's an Italian company, I think)? I wear bibs, also, since they are more comfortable for people who are a little thick in the middle.
The important things about the chamois (usually a leather pad in the crotch of the bike shorts):
They are put together so that you don't have any seams tearing at your tender parts. (There are seams, but you shouldn't feel them).
They should stay put when you are moving around on the saddle (again, so it is rubbing the saddle, not your cajones). So you should get shorts that are tight against your skin, not baggy.
It's not really a pad, per se, so much as big, removable callus.
EDIT: Removed gratuitous gay comment about lycra. Decided it was in poor taste since I put 8k miles a year on a bicycle (one time as many as 14k miles) and probably own more lycra gear than anyone in San Francisco...