CarrionCrow: Hmmm. Do you have, or have you ever heard of, Nox?
donsanderson: I have it, never played it though. Good times?
When you said plain old fun, that's what I thought of. It's got variety, isn't overly complex, just something you can sit down with, play and enjoy.
Also, if you're looking for something with tons of places to explore, Sacred's pretty good in that regard. The world's huge, 7 (if I'm remembering correctly) different characters to play as. It's all Diabloesque hack/slash/loot, though. Not sure if that's a dealbreaker or not.
Additional - Magicmaker's up. 4.99, 50 percent off. Waking Mars to follow.