Hello everyone! I have an aging Nikon D50 that I've used for many years with loving care and finally feel like I've reach the technical limits of the D50 with my 2 lens (18-200 VR and 50mm f1.8). My frustrations with the D50 have been very poor ISO performance other than 200 or 400 and it's intolerably large areas of autofocus so that when I use the 50mm f1.8 lens what I want is almost never in focus (so I usually take 3-4 shots moving slightly in and out). Finally, I like to print my pictures out at 12x18" (fantastically cheap at Costco) and my 5-6 megapixel lens just doesn't cut it. Anyways, with some important family events coming up, I figure it might not be a bad time to upgrade. I've read a lot about the differences between the D300, D300s, and D90 and I feel like the D90 would be a great fit for me. With the prices for a D90 body only seem very reasonable, I've been thinking of pulling the trigger on bhphoto but the only thing stopping me is worrying about an update to the D90 making me regret getting the D90 now. Does anyone have any advice for me about this? Will a generational update to the D90 be significantly better and cost more than the D90 now? Would I be able to buy a new D90 body after an update comes out from one of the big three (Amazon, Adorama, BHphoto) and would it be much cheaper? If people have seen through these generational changes in prices before any historical input would be really appreciated! Thanks!