Pros: Rock solid construction. Case is easily over 60lbs. Very tidy cabling, all out of the way and tucked in. Easy drive swapping. I'm running it with 2 Xeon 5650's and 24gb of kingston (6x4gb) on windows 7 ultimate 64 and I do 3d animation and rendering, and i have yet to see this thing bog down. I've had 128 million polygons in my viewport in Cinema 4d without "out of memory" errors.

Cons: This was my first "serious" workstation build, and I was a bit intimidated by it when it came, especially after installing the components and hooking it up, and pressing the power button, only to have it do nothing for about 5 seconds before powering on. (I'm hoping that this is normal, I can't find anything about it in the manual, the support there is a little thin.)

Overall Review: I wanted to protect this investment, so i also got a UPS with puresine wave output, but I had a heck of a time figuring out what wattage rating to get it for, since the PSU on this is 865W. I wound up buying one that was for 1000W, but as it turns out, with the 5650's, RAM, and 3 HD's, when the CPU's are running at full load (when i'm rendering), the system is only demanding about 290W. at idle its about 140W