Hello, I dont know much about these types of cameras. Or any camera for that matter. My mother has an older Canon EOS Rebel X 35mm SLR. I want to get her a DSLR but without breaking the bank. I want one thats a decent upgrade to that one. How is the T3i??? Also is it true that the lenses for SLR are still transferable to the new DSLR's? Thanks very much!!