I've always designed my sites in 800x600 (well not always I did originally do everything 640x480) but over the last couple of months I've been thinking of going higher.

But like yourself - too many (25% is way too many) still use 800x600.

I totally agree with Lee and Basschick - I can't afford to piss off 25% of my current OR MORE IMPORTANTLY potential members. And these days I only use a laptop myself so until I get that massive 40 something inch monitor - I don't really want more than 800x600.

Just my thoughts.