I would rate it a 7 as well, not because the parts are bad, just that you could get a more functional PC for less money. things like the TT Pipe , Silent Cat fan, XMS memory, GS 6800GT, PSU, HD, and that case all have have better priced and just as functional counterparts. Even the floppy could probably be had for a buck or two cheaper if you went with Teac.
Anyways, I would rate it about the same as mine, because performance would probably be slightly better than mine if we had the same CPU, but I could save at least 30% of the cost and still have something within 3% of your performance.
Of course, not everything has to be about price/performance.

With the rice factor, you get a 9.