i just puchased the new canon 40d (amazing) and i bought the 50mm 1.8 lens to go with it. i love this lens and the quality it gives to the close up shots. i need something new. i am going to photograph a friends band this weekend at a show they are doing and was wondering what lens i should consider purchasing for that. i need some closer shots than the 50mm allows. i must admit i know nothing about this stuff i just love photography. i am learning as i go so sorry if i sound like an idiot. - i want a lens that can take those wide angle warped shots. - i also want one that i can zoom in pretty close. any advice?