Have you tried it? It's not nearly as bad as people are making it out to be. Most of those same people said the same exact things when XP was released.Really, the only thing you need to make sure of is that drivers are available for all of your hardware. There may be a few software compatibility issues as well...but it's not nearly as bad as some people make it sound. Core Duo's are 32-bit only. I would have to agree, the only issue I have with Vista is my microphone won't work until the drivers are updated on my X-Fi card. I have to say I really like Vista. I installed Ultimate on my PC and Home Premium on my daughters. The built in Parental controls and UAC are actually a good thing for her and the auto backup is nice too. Without buying extra software I can monitor what she is doing while setting time limits that she can access the computer. The UAC keeps her from downloading all those free screensavers and I have it set to back up all the info once a week. Could you set all this up under XP? Sure, but it's so much easier in Vista. Also the wireless setup (WPA2) and filesharing was point and click. I was able to get academic versions of the software so I didn't pay anywhere near what it goes for retail. I also added in Office 2007 and that is also much more user friendly. I've had no problems with games or dev software (EQ2, BF2142, Doom3, Halflife2, MATLAB, Visual Studio 2005). I really don't see what people are complaining about other than just to be heard. I saw a post before where someone said they had a high end system with a dual core 2.2Ghz processor and 2GB of memory. I hate to tell him that's not high end in today's market. Vista is today and you need todays hardware. If you want to run it on a min spec machine then expect minimum results. I'm running it on an older Asus AV8 AGP board with an AMD 185 Opteron OCd to 3.05 Ghz and 2GB of memory/RAID 0/ATI X1950 pro. My machine runs vista flawlessly and I get a rating of 5.5 out of 6 on the Vista performance index (memory is lowest score, it's older 3200 corsair memory running at 333 due to all slots being filled).