Everyone who owns Vista knows UAC by now. Everyone also knows it's not smart to turn it off, but still a lot of people do so. It's not easy for Microsoft to make their customers happy, is it now?! ;-)
Anyway, a smarter solution is something I read on a weblog a long time ago, but I keep forgetting who actually wrote it. You won't turn off UAC but you no longer need to respond to three separate dialogs anymore. I needed it again and started my search, to find it again on Tim Sneath his weblog, right here.
For personal reference and to inform others I'm posting it here again, in short form.
Thanks Tim Sneath!
Personally, I wouldn't do that. The protection I get is worth 1-2 extra clicks per day. "Protection" is also the awareness of new software I install in terms of their admin demands ;). BTW, if you are getting more than 2 clicks you should consider an elevated cmd where you do your admin stuff.
Additionally, note that with Vista SP1, the number of elevation-related dialogs is reduced for file system operations :-)
Finally, the only thing I personally tweak on secpol.msc is the "switch to secure desktop" - that is truly annoying!