I don't think xp 32 bit can use 4gb ram. And newer games are getting rid of direct x 9 witch means you will need to get a newer os to play them. But other than that it seems awsome for $400! i ordered the g860 with a hd 7770 and 8gb ram on a $400 budget.
XP 32's limit is 4 GB. It's going to be temporary until I have enough cash to buy Win 7 anyway. But sweet! Do you think the how does the 7700 pair up compared to the Gtx 650?