I'm shopping for a ne DSLR too and have narrowed it down to a new Nikon D80 , Canon 450D or 30D. Would like to get the new D90 but price is too high still - especially since it is just a hobby to me. Go to
Digital Camera Reviews and News: Digital Photography Review: Forums, Glossary, FAQ for good side-byside comparisons. Also, check out the lenses' quality and prices too. ($200 saved in buying a cheaper body could end up costing you $500 later when you got to buy that new macro or zoom lense you may want.)