You'll need two seals, dust covers and fork oil plus the special tools to remove the springs. You might want to look into upgrading the springs whilst you are in there. Everybody seems to have a positive opinion on the Progressive springs which usually go for about $75.00 on Ebay. You might also want to look into the mod that I posted on here a short while back which seemed to go unnoticed and really is quite simple:
My springs arrived last Saturday and as soon as I machine the spacers I'll be going this route. There is also a very good write up with pics available from Atomsplitter on dot com site: