2x 6570? That doesn't make sense, those are not good. You could get a far better computer for cheaper if you built yourself. If that's scary to you, local computer stores will build for a small fee.
Like Mike said, build one yourself by watching guides (Newegg TV has a 3 part guide that is EXTREMELY helpful.) or buy the components and pay someone to assemble it.
You could in theory swap those bad boys out but you would be money better off building it on your own. Also, for ref, here is AMDs GPU comparison. http://bit.ly/12rGLz4
http://pcpartpicker.com/p/WTpr Quick possible setup if you build it, some parts listed are definitely changeable. Tossed this rig together in a few minutes.
