OK I'm looking to do a little development, and maybe playing with some 3D rendering and other graphic design. I also want something reasonably fast for general workstation use and networking. Basically the type of thing I need to know is, for instance, what is the performance difference between a 195, 225, and 250Mhz R10K procesor, or if getting SSI or SE graphics is worth paying more for in my circumstance. I know a good(recent) machine wont be inexpensive, but I don't exactly need top of the line stuff. I'm looking to spend maybe, I dunno, $500 and I'm wondering what I should prioritize, and if anyone has any advice for a SGI newbie.