whackamac, i hope you can pull this off (not only the getting the bios thing but also the pipes unlocking thing) your best bet is to talk to the reviews (one that is friendly to your cause) and either ask them for the bios or get them to talk to ATI and then get a link for you. i'll give it a go too, and i'll post if i find anything, however unlikely. i want to help in anyway i can (which would not be much cause i have no coding experience in this area).
here are some urls you can try: (you may have checked them, or not...)
(look for bios file under these, they may not have posted a link yet but the file may be there)
ftp://www.alienware.com/ftp://ftp.dell.com/
(more will come, just give me time)
just e-mailed ATI asking for the x800 bios, i neglected say what i needed it for or anything like that, i more or less acted like i've delt w/ them before. anyway, it doesn't hurt to ask...right? the worst they can do is say 'no'.