ok, just think, if the xbox could load an os and had proper drivers for everything, I wonder how good it would bench (3dmark 00/01, Quake 3, UT 2003 etc).
I suppose a similar system would be:
AMD Duron 800mhz
Nforce 1 dual channel MB
2 x 128MB Ram
GF3 ti 500
20 Gig HD
DVD
I think that the majority of people (not us that know better...) underestimate the potential of the pc compared to the xbox.
Just some thoughts...