ha i thought crossfire and sli are the same ...now i dont know what i mean to do....well what i want is to have 2 gtx 460s working with eachother to increase performance...and uhh i dont care about the ram i have to get new ram anyways cause my ram is crap so be it ddr2 or 3 i dont care
If you don't change the monitor even a GTX 250 or a HD 5750 is overkill so if you bought that GTX 460 you should get a new full HD monitor first, your current CPU isn't that bad.
Are you really running the 460 on that power supply? That's another weak point in your rig. Then you can get a new mobo, CPU and RAM. And you can get a cheaper CPU if you want, for gaming the video card is the one that matters in the first place.
I would wait for the mobo, the AM3 SLI mobos are just starting to show up and the prices will likely go down for the CPUs as well and your CPU is still good. And you can sell your monitor and buy a new one. Since that PSU of yours can power your card, keep it for now but when you'll get the new CPU/mobo change the PSU as well, most likely you'll be able to find good combo deals on newegg.
A big monitor will greatly increase your gaming experience.
1. AMD chip mobo 890 series, supporting X6 1055t perfectly, and if you lucky enough, find the way to hack it for Sli--------as i knew the Origin PCs had made it
2. Nvidia chip mobo 980a Sli(Asus M4N98TD EVO or MSI NF980-G65)/750a Sli, which is still available, supporting Sli perfectly, but not so well for the latest X6 1055t, for the turbo core feature will not function until now, maybe it will be OK in the future, but who knows.