I am currently in the process of gathering data about Nikon as I will be getting my very first DSLR soon! On nikon Japan, D90 has been added to the discontinued category. I was thinking of getting D90, but now I am in dilemma as this has been discontinued in Japan, and soon it will be discontinued in Canada as well. So, should I wait or is there any other option for good SLR camera. I was also considering D3100 but it does not support auto-bracketing, and so will not be too useful for HDR photos. Now I am considering D5100. This seems like a nice camera as well. Based on the description, I see that it supports auto bracketing as well as it has a dedicated button for HDR. So, my question is considering my status of being relatively new in the world of DSLR, and aim of being able to master HDR as well as be able to take nice pictures, what is the best option for me. 

(I am pretty sure questions like this have been posted before, so if this annoys you, I am sorry but I didn't find much)