I'm a little perplexed about the megapixel obsession. That is, once upon a time, I thought 6 was phenomenal. Later, 10 was good enough to shoot for billboards...now with the 50D and it's 15mp capabilities, I'm wondering if it's just overkill. Seems like it. Mostly, I'm bummed that people who don't really know anything about megapixels will think I'm 5 megapixels in the rear. And not to mention, my 40D almost instantaneously went down in price nearly 50%. Hurm.