So after about a month of research I thought I'd decided on the Canon 40D with a Tamron lens. However I want this camera, it being my first DSLR, to last me at least 2 or 3 years. I don't care about the video mode on the Nikon, but it would be nice. As well I hear you can have wireless flashes added to the D90. I'm just trying to justify throwing down the extra 300 on the 50D or going for the Nikon instead.