I don't. I'm happy running my games @ 1024*768*32bit res. I don't see the need for pumping the res all the way up, especially when I can't notice the quality difference and doesn't add to the games that I play (mostly racers).
Perhaps its just me, but do you REALLY notice that big of a difference between 1024 res and 1600 res? The text are too small for me, for application and gaming. To me, the purpose of getting a decent sized monitor (17-19"

is so I can clearly see things @ decent font and quality without having to squint.
Just my 2US/3Cdn cents

Plucky