I did get Vista set up on my dev box the other morning. The RTM version is really nice. Yes, I did get the new sounds and they are cool. <g> I've been slowly uncovering little enhancements like the new Photo Gallery and the ability to grow or shrink disk partitions. (I found that after installing a new 320GB SATA hard disk--I had run out of room for a full TrainSim development enlistment.)
Now I've decided to bite the bullet and upgrade my laptop, a Toshiba Tecra M3. This PC is my daily lifeblood since it stores my email archive and other documents that I use on a regular basis. It's also the computer I take to meetings for note taking, presentations and research. In other words, the data on it is very, very important. I'm using a new Vista feature, Easy Transfer, to make a backup of my data to the new hard disk on my dev box. Easy Transfer is basically an updated version of the Files and Settings Transfer Wizard that shipped with Windows XP. After I get the files copied I'll pave my hard drive and install Vista.
The part I'm not looking forward to is installing the applications that I need. Office 2007 gets installed along with Vista so that's taken care of but I will need things like Visual Studio, Source Insight, WinZip and so forth. Some I probably won't bring back. In a way that's good--like sprint cleaning.