Monarch for a "custom" prebuilt, can hardly build your own for what they sell it for. Also service is very good. Right now Dell has 34% off on their desktops including the XPS. You could get a P4 3.6 XPS with an XT850PE for way under $2000 (w/o) monitor and depending on what else you put in it. I just got one. It's very quiet, 20-50% faster at video encoding stuff, then my previous Athlon 3500+. Plus with the X850XT PE it's also faster at gaming. Bios is locked up tighter than, (insert phrase of choice) if you like to tinker or OC. I'm very pleased so far.