Mac OSX Tiger r0x0rs your s0x0rs haha. That's mplayer on OSX right there. Playing Josie and the Pussycats...it's a kind of funny movie :) If you are having speed troubles with playing XviD on your mac, try compiling MPlayer from source . It worked for me. Was jumpy before, now plays smooth!
By the way, iBook deconstruction makes you lose screws!