how do u convert psp brushes into ps brushes?? if thats not possible, can u name a few GOOD sites w/ good ps brushes? im currently looking for hand-drawn heart brushes. plz name me some good sites

There are a lot of good PS brush sites out there. I recommend starting here:

http://veredgf.fredfarm.com/vbrush/main.html

It has a searching engine for both PS and PSP brushes.

I think you have to change the ending to .abr to .jbr not really sure... though.