another really good site is
Digital Camera Reviews and News: Digital Photography Review: Forums, Glossary, FAQ they have very through reviews, pretty unbiased as well, of all major cameras and eve some of the obscure ones. i too think you get more for your money with canon usually, especially lenses. seems like canon's lenses tend to be about 10-20% less than their nikon counterparts usually... not always but most of the time and that helps