That figure of 10,000 was months ago...in the summer I think. Halo is simply not that popular for PCs. Obviously it is unbelievably popular for Xbox. The same thing goes for HL...it is one of the best selling titles ever on PC but it's PS sales were less than stellar.
what board? my mobo? hmm not sure if yer makin a joke or what... but i bought my mobo on ebay for like 125$ 6 months ago, and yea its good i like it.. *shrug*