I am about to venture into the world of digital SLR photography as a hobby. I have been researching cameras for a year and need a little help in making a final decision. Since the primary purpose for a camera is to take photographs, the most important factor is picture quality. The second is flexibility to adapt to any circumstance that I may encounter.The camera that I have been most interested in is the Sony Alpha A100. It has the adaptibility and excellent photo quality at the lower ISO's. However, I am concerned about the noise levels at the higher ISO's. Since I anticipate primarily shooting wildlife and landscapes, will this really be an issue. Also, should it become an issue, how much would noise reduction software help. I am also considering the Canon Rebel XTi. Although the picture quality is better, I believe it is lacking the flexibility I desire. I seem to waver between these two cameras depending upon the last article I've read. Any input will be appreciated regarding these or any other camera within this realm.
Thanks,
Steve