But lately I've also been playing lots of old DOS RPGs as well. Currently, I've been playing http://www.gog.com/en/gamecard/realms_of_arkania_1_2 and loving it. It's a turn-based, party-based RPG so it may not be for everyone, and there isn't much to do in the way of sidequests and exploration (overland travel is similar to Fallout 1), but the complexity appeals to me greatly. The series is based off of the http://en.wikipedia.org/wiki/The_Dark_Eye pen-and-paper ruleset from Germany, which is apparently a fierce competitor of D&D over there.
The first game is a bit tedious to play, with a barely functional automap, lack of graphical diversity and step-based movement. The second one uses actual 3D environments and free movement, but other than that they more or less play similarly. There's little story carried over from the first one too, so unless you want to play the entire series I think the second is the best one for getting a feel for the games first.
Character creation alone will probably take you upwards of an hour the first time around. That's how I knew that it was a good RPG - before I even started playing, I was already enamored with all of the apparent specializations and interactions the characters could have with the world.
The games themselves are challenging. A lot of micromanagement and survival elements (hunger, thirst, diseases), rather than primarily centering around combat. But there's a lot of oldschool pen-and-paper things you can do in the world for roleplaying, such as performing for money at taverns.
The dungeons are filled with riddles and puzzles, although in Star Trail's case there appear to be no optional dungeons - only the ones for the main quest. It takes a lot of getting used to the interface, and you ought to keep lots of extra saves as you can become permanently stuck in a few places, but otherwise it's a brilliantly captivating and complex series that was sadly overlooked in America. My only real disappointment with the games is that they're relatively linear, with very few sidequests. The towns are lonely (no NPCs on the streets, just encounters told via dialog boxes) and there's no factions to join. I admittedly tried to liken the game in many ways to Daggerfall due to the similar mid-90's 3D style of the second one, but that's unfair. This is a completely different type of RPG, but a thoroughly enjoyable one.
You can see my merry band http://img834.imageshack.us/img834/5145/dosbox074cpuspeedmax25ca.png. Unfortunately, Uncle Monty (the condescending voice of reason for the entire group) died falling off of a mountain, but I managed to get through the first dungeon without him by bringing along a rogue NPC I encountered on the road with me against his will (he wanted us to escort him to a town). As a roleplayer, there's a lot of fun to be had micromanaging this rowdy gang of misfits and imagining their interactions with one another. It's like an old 80's Saturday Morning cartoon.
What old RPGs have you been playing as of late? Any recommendations?