I can get either of these for around $300. Both have Windows 7--good thing. I am looking for a fast Windows desktop for high end Office work that also supports multiple displays and Aero. I don't game. 1) http://newjersey.craigslist.org/sys/4881670665.html It Has an Amd 3.2 ghz Quad Core Processor A Nvidia dedicated graphics card 750gb hard drive!!! Lots of space Windows 7 64bit ultimate 4 Gigs Ram From the screenshot it looks like it has a AMD phenom ii x4 965 2) http://newjersey.craigslist.org/sys/4881830411.html Windows 7, 64 bit fresh install Amd FX quad core 4100 3.60 GHz (can be over clocked) 8 GB Ram DDR3 (upgrade to 16 gb.) Nvidia 1Gb graphics card Gigabyte Motherboard Lg dvd Re- writeable 320 GB hard drive I talked them both down to around $300. Which processor is better--both have a fresh install of Win 7 Ultimate. One has a lot of memory. The other has a huge hard drive--memory is more important to me. From what I researched it look like the AMD phenom ii x4 965 is a better CPU than the Amd FX quad core 4100 3.60 GHz? Thanks for any input!