I'm going to drop my initial plan for a 'dynamic' resizeable width (750-1000px), because I'm fed up with all the problems it causes because of different browsers. I built it for IE7 and FF2, fixed it for IE6, fixed it some more for IE8 and now FF3 is not displaying it all correctly. I don't even dare to test it on older Opera browser. It's getting way to complicated with dynamic frame, then fixed elements inside, sharing with some more dynamic ones. Argh, I'm done trying.
So I'm going to make it all 'fixed' again, but for 1024x768 resolution, nicely centered for all bigger resolutions. The 6% of visitors that are still using 800x600 resolutions, well too bad, stop lagging behind everyone. And same for IE5 users, can't keep supporting all these different older browsers.