heres a quick build i jsut looked up for you
How to Ask for New Build Advice
While you're likely to get more performance out of an i7-930 in Photoshop than with a Phenom II X4, if your budget won't support it, recommending that you go Intel is useless. An Intel i5-750 build is likely to cost about $75-100 more than an AMD build. An Intel i7-930 build is likely to cost another $100-150 more than the i5 build.
You really should do what he stated and ask for help correctly so we can help you more efficientlyhttp://www.tomshardware.com/forum/261222-31-build-advice