Actually, after running both Beta 2 and RC-1 I do like windows Vista. That said however, after numerous driver problems and there being several drivers that are still in Beta and the fact that several third party Anti-Virus programs will not be released for Vista until the end of March at the earliest...I'll be waiting until after SP-1 is released.
I've been running Vista for about a month. I find it to be a decent OS, but it doesn't have that "wow" factor MS is fond of marketing. I've been able to install all my peripherals (XFi card, HP printer, Logitech cam, Logitech wireless mouse&kb, Linksys router) without any problems. I like the new features, especially the search capability and the new Windows Explorer. That said, I don't find Vista to be a huge change over XP, and hope MS addresses the IE7 freezing problem that I've only encountered in Vista. It's also more demanding on my system. With XP, my PC ran quitely until I started a game or Nero, then the fan kicked in. With Vista, it runs on high all the time. Not a big issue.
Vista isn't mind-blowing by any means, but it's a nice step up from XP. As for the resistance to security holes, time will tell.
Dell Dimension 9150
2.8 GHz Pentium D Dual Core
Vista Home Premium
2 Gb RAM
Sound Blaster XFi Xtreme Music
256 Mb nvidia GeForce 6800