The Man Comes Around
After a year of lust, I finally have a wide angle lens to play with, the Sigma 10-20mm. So far I am amazed at the varying perspective you can create by barely moving a couple of inches. Definitely a well-built, solid lens as well.
I can see this lens staying on my camera the majority of the time I use it; I have always been more of a landscape and architecture type of guy and this lens creates a whole new way to view the world through my viewfinder.