so i get on newegg ordered all my computer stuff. had a couple difficulties last night but got it built + running in 2 hours flat ONLY to find out i accidentally bought 2 gigs of ram instead of 4!!!! should i return ti to newegg? im running 32 bit XP but i was PLANNING on running 64 bit vista but i only got 2 gigs of ram! crap! and also can i buy 4 gigs of ram making my total 6? advice? is 2 gigs ok for 32 bit?