If you like Fallout 3, you should definitetly try the "oldies" Fallaout 1 & 2. Especially, Fallout 1, while rather compact, is conisdered by many hardcore rpg-fans as a excellent example of proper rpg design.
I didn't have much time to play recent months, but I tried "Dark Messiah of Might and Magic" - nice first person slasher, some levels and monsters are very well designed. Few days ago I picked "Titan Quest" - interesting Diablo clone, but seems too linear to me (compared to Sacred). But the idea to base game theme on the Greek Mythology is very cool
