I managed to have the foresight to buy a 64 bit system five years ago (windows Vista) and now i hear Galciv3 will only run on 64 bit systems!
But since my computer is now five years old,,,, i dunno??
I cannot remember the stats of my computer exactly (I'm at work right now) but it is what you would call a 'mid range' gaming system five years ago, purchased from an online Ebay store.