most apps i see have separate downloads for intel or ppc binaries.
is that not the case for mplayer? which is this for? or both?
The binaries are only for PPC. I think this project is dead. The MPlayer OSX Extended works on both Intel and PPC: http://mplayerosx.sttz.ch/
This project is pretty much dead folks like newacct said above either check out MPlayer OSX Extended (PPC & Intel)
http://code.google.com/p/mplayerosxext/ (Other URL doesn't load for me)
Or if you're Intel 32/64 bit inclined I would also check out MPlayerX (I prefer this one's interface)