Though I haven't placed the order yet, I have decided I will likely buy a 7950 + a new PSU, put those into my current system, and then transfer them out when I build my Haswell rig. Thank you for the suggestions. I agree with a comment made, that buying a graphics card with my current PSU in mind would be kinda silly.
good decision. HD 7950 boost is the best price perf high end card in the market. get a quality 500 - 550w psu like rosewill capstone 550 or seasonic s12ii 520. good luck :thumbsup: