I didn't want to leave 98. Now I don't want to leave XP. Windows 7? You have to be kidding. How about Linux? Then what made you leave? If you are adamantly against changing to Windows 7 (or even XP for that matter), why do it? Computing is the epitome of change, and Linux is the most constantly evolving of all the OS's out there. If you don't like the changes, then Linux is definitely NOT for you.
I fail to see how Linux involves more change, and there's so many distributions that you can get whatever you want.
Anyway, I switch systems because my IT clients are forced to switch systems (because they use whatever comes with their purchase). Since I want to support them, I use whatever they use. If consumers had there way, they would stick with what is familiar and not upgrade unless there was a compelling reason to do so.
If you are changing computers and the reason for change is hardware driver support (as I suspect) then get a copy of VMware ESXi or XenServer ...
Sure, I like running a virtual machine inside of a virtual machine, inside of another, on a layer of common controls, on top of the net framework, on top of java, inside of flash. It runs so super-duper fast!