how to replace u-joints?

Hello, i would like to replace the u-joints on my 98 classic rear drive shaft. I have never done it before, can i do it myself?> and if so ,where can i get a description on how it is done?......thanks... Chris.

here's a starting point.

http://jeepin.com/features/ujoint/index.asp
http://www.4x4wire.com/tech/axle/ujoint/


I'll be doing the same thing to all of my u-joints front, rear, and axle so I will be buying a u-joint press to hopefully make things easier. also, get new yoke straps and bolts with blue locktite while you're at it.