Brett, if you can find a Black Cap Basslet, get one. They're awesome. I've wanted one for some time for the 90g. Pretty hard to find though.
As for the big fish vs. little fish, I agree with you guys. Smaller fish in pairs or groups are much more indicitive of the natural reef. I think that was the major reason I got another tank: one tank for SPS and small fishes and one tank for the larger cool fish. My second tank was supposed to be a FOWLR but I couldn't help myself and added some corals.
