Okay... a lot of mistakes there (but we've all made them)
1) Newegg.com is your friend. Use it. Much cheaper and better than compusa (they may be a website, but dont be worried about fraud. They kick ass, and im sure many people here will second that)
2) that motherboard doesn't support that videocard (which is cheaper at newegg.com). The motherboard has an agp slot, no pci express.
3) spending way too much on drives, once again newegg.com
4) didn't say what your budget is. We can help maximize what you get for your money. remember, windows xp home is about $100.. and expect to pay atleast another $100 (may find some weird deal) if you want MS office (word, excel, publisher, etc...)
maybe someone here will be nice enough to repick a bunch of parts for you at newegg.... maybe i will... but not now...