http://www.abandonia.com/en/games/194/Darklands.html
The list of games you like is very similar to mine - Planescape, Fallout 2, and Baldur's Gate are some of my favorite games. The review on the Abandonia page is kind of junk, but the screenshots will give you a little idea. The combat is real time tactical with pausing - similar to Baldur's Gate, and the majority of moral and skill-based choices are text based on beautiful hand-drawn backgrounds.
It's a really, really hard game with a tough learning curve, you'll die a lot before you get the hang of how to start and play, but it's really rich and rewarding. Probably the most unique RPG I ever played - it's historical fantasy set in the Holy Roman Empire, and the systems of the game are all based on the superstitions of the day. You can pray to actual saints to help you perform miracles, there's no magic per se - just alchemy that you mix from different ingredients. There's so many ways to play it and so many different options, but it is really hard and you'll get killed a lot in the beginning.
These sites have helpful info if you get into the game:
http://www.darklands.net/index.shtml
http://games.groups.yahoo.com/group/darklands/
Try it out, if you like sandbox-style fantasy games with tactical combat, detailed character customization, and don't care about graphics - this is quite the game for you. There is a plot and a main story (there's actually three of them), but you find it over time, you just start out the game trying to get rich and famous and you can totally ignore the plot if you want. Maybe worth a spin - you'll probably need Dosbox to get it working, also spend the time to customize the sound in Dosbox so it starts playing, the sound on the game is really, really good.