I currently have the 4400, but am going to upgrade to the 6000 since I can get it for free. I am wondering however, what kinda of games they have for it right now and other GIN software. I remember when I first got my 4400 there was not a lot of software available for it. All I know is if I can at least get Tetris I'll be alright for a while. Also, if any of you upgraded from a 4400 to a 6000 I would like to know what you thought about it, pros and cons.