I am currently using a 1.5 gb asus gtx 580. Despite lots of new games having higher requirements, this card still runs most of them on hi-ish settings with no performance issues. I know this won't last forever though and am wondering how long I might have to wait to find a good 4gb card not over $200. I'd love to stick with an asus gtx card but I don't know if that will be possible. Any suggestions on comparable cards that might fall to this price sooner than later?