
Originally Posted by
Edward M. Grant
On that budget you're probably looking at a high-end i5 and an Nvidia GTX 660 or a similar mid-range ATI card. An SSD for fast boot times is likely to be outside your price range too, unless you buy a small one that just has space for Windows. You might also want to look at a prebuilt system as Windows will make up a large part of the cost of a home-build and OEMs get it for much less.
You should probably also check the requirements of your 3D software and see whether it works best with Nvidia or ATI before deciding on the graphics card, and if you'll be doing lots of 3D rendering, check some benchmarks comparing the i5 to AMD's new CPUs which have more cores. They're worse at single-threaded performance so they tend to drop behind in games, but rendering typically uses as many cores as it can get.