Anyone know of any nicely priced old-school first person RPGs that I may not have played, along the lines of the Eye of the Beholder or Lands of Lore series? I've been itching for a good one lately, and I've played the EOBs, LOLs, and Stonekeep. Any sleepers or favorites I may not have heard.thought of?

Elder Scrolls: Daggerfall is available for free now:
http://www.elderscrolls.com/downloads/downloads_games.htm

Ishar trilogy is available from GOG.

Arx Fatalis? is not great, but is still a very good old school rpg.

As Andy quite rightly pointed out... Ishar Series!
It's cheap as chips too.

Arena as well, though if you've clicked the link it should be obvious...
The Wizardry series might be something for you as well. I'd recommend VII or 8[sic].

Dungeon Master I & II

Get Might & Magic 3, 4 and 5.

Thanks, guys, these are great. I've played the old M&M games, (and I wish GOG would get World of Xeen, as I'd love to play it again). I haven't played the Ishar series, and the reviews were mixed, so I wasn't sure...but I think I'll grab them for that ridiculously low price.
I remember another New World Computing FP RPG that was great, but i can't remember the name... ??? (I'm pretty sure I sold it on Goozex a while back, and now I kinda regret it...)
Anvil of Dawn! Another great game I wish would get GOG-ized.

There's a little-known dungeon crawler by SSI called Thunderscape that I really like. It's flawed, but still underrated. It's a little bit campy, and the levels are sometimes mazelike and tricky to navigate, but it's a lot of fun and the music is awesome.

Waxworks is here too if you like a little horror with your FP-RPG. ;)

Hmmm... Great choices, guys. Thanks again! I think I might finally try the Ishar games. Any automapping in any of them?

Incidentally, does anyone have any advice on managing the combat in Ishar? I''ve considered buying the series from GOG, but I've played the first one before, and I found it hard to keep up with. I'm thinking maybe the way to go is arrange my fighters so I can concentrate on two or three at a time, and cycle them out if they run low on endurance. The attack cycles are so fast that I don't think I'd really miss out on any attacks by having two members in the back.

Deux ex is possible the only old school fp Rpg that i can think of but that may not be what you are interested in.

Wizardry 8, trust me. Can usually find it for $20 or less.