o yes yes, i've got it installed on my PC, scratch my last post. posting this from OS X if someone could help me out in getting my 1800xl and creative soundblaster extreme music working that would be awesome. current specs are:

LANPARTY UT nForce4 Ultra-D
AMD Opteron 148 2.2 ghz single core S939
ATI 1800XL 256 MB
creative soundblaster extreme music

my previous problem was that i selected MBR on a guid partition.. dumb on my behalf thanks everyone!