I had a 55-250mm lens as the first telephoto lens I bought. Sadly it was stolen, with my 400D just before we left Bristol.
I now have a 70-300mm lens, which is giving significantly better results in my mind - although I didn't spend as much time with the 55-250mm lens as I have with the 70-300mm unit.
I know it's outside budget, but it's glass and you should only be buying that once (unlike a body)... must stop oggling L-series 70-200mm lenses
