Yaay! Received my YellowDog Distro CD's today, now what?


Dark Archon
I received my YellowDog Distro CD's today, and am ready to begin. Any pointers before I proceed to wipe the drive and partition? im looking at 60 to Mac OS X, and 20 to YDL. Is that a good amount for each? I primarily work in OS X, but dont want to short change myself in YDL if I end up needing more space for it.

Anything important I should do prior? (I've already backed up all important stuff to DVD's) Any special prayers or mantra's I should recite during? ;)

I appreciate any help anyone can offer. I am somewhat new to Linux, so I expect to be asking a lot of questions here!