1600x1200 Wow! No matter how quickly it downloaded, I'd be scrolling for days. Personally, an image that size is just too big to really enjoy unless you have at least a 20+ inch screen. I saw a survey a while back that said the majority of people use 1024x768 so it's either shrink or scroll. Scrolling tends to reduce the continuity of the image IMO. I'm nor sure if the browser's zoom out function yields the same result as having the original smaller. Each to their own. If you have the bandwidth and the screen real estate I'm sure it's great. The vast majority of images on the internet seem to adhere to the 1024x768 maximum size. I imagine that may gradually change as more people get huge plasma displays or something.

"Democracy is a pathetic belief in the collective wisdom of individual ignorance." - H. L. Mencken