I currently have an Intel X25 80gb.Is there any compatability issues I should be concerned about? I am looking to add an Intel 120gb or 160 gb.There is a great variety such as 320s 520 s and the like.Looks like the X25s don't come in 120 or 160! Any suggestions? My 80gb is almost full with Win7 and 2 games.This rig is only for games--I don't do any media stuff onit!!