http://www.beastskills.com/Handstand.htm
This is
the best handstand guide I've seen out there. This site has been around for a while, so I take no credit for this, but I'm not sure how many people are aware of it, so I'm just posting it here FYI. The picture illustrations and written guide to go with it shows you exactly how to master handstands, which is a basic fundamental if you ever hope to achieve other moves where you need to balance on your hand(s). Hope this helps!