Being cautious with a new OS is sensible. Just try 7 out on it's own hard disc for a while and see how it goes for you; my initial impressions are very favourable indeed. The standard Vista video drivers work on it, so that won't be a problem.
I'm interested in what this overscan issue is and what graphics card your using there.
see the specs
..
8800 gtx.
win xp.
680i chipset mobo.
on a 50" HDTV 1920 x1080
samsung HLS50 DLP texas instruments TV monitor.
apparently it's a hardware issue.
but the new nvidia driver 181.20 screws me.
If win 7 starts with the new drivers, I assume I'll be screwed there as well.
8800 gpus all have the same problem.
if you enable overscan compensation for HD tv.
you break HD compliance.
you can't watch bluray or HD dvd.
didn't tell us that when we bought 5 of them..
but don't let me hijack the thread..lol..
If I can get my hands into 7 for free..
then I'd try..
I had to many vista problems to jump for 7.
it actually costed me money and down time.