As stated before- I used Bubbas Tutorials (
http://planetquake.com/bubba/tutorial.html) - and I really did like them.
And when you have all that down pat try Bubba's Advanced Tutorials (
http://planetquake.com/bubba/tutorial2.html)
This tutorial for Quake3 really helped me learn JK2Radiant basics:
http://www.cgonline.com/features/010626-f1-f1.html)
Excellent Info Shin & Tigris!;)
-Ya both beat me to the punch-LOL:p