I'd love to have some egernia skinks. They live well in groups, stay small, and bear live young. All this plus they look incredibly unique. They cost quite a bit, but in time I'd like to get a group of 3-4 stokesii.
If you can't afford a group i'd recommend the Cunhinghams skink (Egernia cunninghami), they don't fare as well in groups as Gidgees and are slightly larger but they have quirky personalities.
I'm not sure if their readily available in the USA though but here in Australia they are quite common.