I've finally got some cash to spend on photography. Not much really, but well, there won't be more till next holidays probably. I am really desperate to get something sharper than my 18-55 kit lens from the XTi. I've been looking at the canon's new kit lens, 18-55 IS, reading some reviews, comparing. Turns out it really is way sharper than the old one, the difference is pretty amazing. The IS is also a nice bonus. But... then I would be changing my kit lens for another kit lens... The other lens I could afford is also the 50 1.8. I'd love to have it, but I don't shoot a lot of portraits and that's why I think a standard zoom is more important for me. Any thoughts?