Thanks, I have been researching this a bit. From what I can tell, most modern games are using 512x - Some people have had luck using 768x. I am not sure how video memory works, and its relationship to system memory.

In planning my game, moving from a few rooms to a full level, are there guidelines beyond keep your textures as small as possible? Like if I use a 512x sky, what does this mean for the other textures in the level. Links to this sort of thing would be appreciated if someone has something.

thx again.