Er, this might be more of a workaround than you are looking for....
But the Intel Z68 chipset allows you to set an SSD as a cache / boot folder for a larger HDD. This would allow your computer to see the 2 combined as a single volume, which should fit what you need to do with UAC.
You mean Smart Response Technology? That would require an upgrade from my H61 mobo, and if I use it for so many different games, the cache wouldn't last long enough to provide a significant speed benefit. I think I could do better by carefully controlling which programs get installed to the ssd.
You can do all kinds of damage to user access, and impose all kinds of limits with Group Policy. Would I even consider installing a game that has found a way to monkey with GPO on my non-domain member PCs? Hell no, so be careful what you do.
Who said anything about the games monkeying with group policy? I'm talking about games that write options and save files into their own folder (which is allowed in XP, but against policy for Vista/7 when the game is installed under Program Files - personally, I disagree with the philosophy of restricting all such writes; only writes to other folders under program files or to executable files need to be restricted) but don't virtualize, and thus have problems or even crash when run from a uac-restricted folder (sometimes the developers don't realize that virtualization is prevented, possibly because they were using XP or only running it from non-restricted folders)