A few weeks ago I mentioned that I was thinking of buying or building a system built around a quad-core CPU. I had made a mental note to wait until the fall, until I looked in my RSS reader one day and saw that Dell was selling the Dimension 9200 with an Intel Core 2 Q6600 (quad-core, 2.4GHz), 2GB of RAM, and double-layer DVD burner for $649 (with shipping, $680).
After it arrived, I installed an extra 2GB of RAM ($70), replaced the default 80GB single drive with a 160GB Raptor (10,000 RPM) system drive and a 500GB data drive ($250 combined), and ditched the Nvidia 8300 GS video card in favor of a 512MB ATI Radeon HD2600XT ($95 $155). I also upgraded Vista Home Basic to Vista Ultimate x64 ($199).
Grand total: $1295 $1355. Here’s how it does on the Windows Experience Index:

Three observations:
1. This machine really does fly. It’s especially impressive to see a 1600 x 1200 screen full of thumbnails in Windows Photo Gallery draw itself instantly.
2. Vista x64 is working better than I imagined. I had tried it back in February and gave up because of driver and software compatibility problems. Those appear to be all fixed now. There are still a few missing pieces in the 64-bit puzzle (like no connector for Windows Home Server), but I can deal with those issues and will definitely keep using Vista x64.
3. VMWare Workstation 6 absolutely rocks on this machine. I have Ubuntu Linux 7.04, XP Pro, and Vista Enterprise Edition all running in virtual machines and this box isn’t even breaking a sweat. I’ll have more to say on this subject at ZDNet soon.
With the exception of a single test system running on a four-year-old P4, every system in this home/office is now dual-core or better, with most running some flavor of Vista (the exceptions being a hard-working Media Center Edition 2005 system, another running the final release of Windows Home Server, and a third running the latest beta of Windows Server 2008).
I really don’t think I’ll need any new hardware for at least another year!