Hi there - trying to decide on a decent wide at the moment myself - what made you choose the Sigma 10-20 over the Tokina 12-24 or the Nikon. While I am on Canon stuff, I am trying to decide on the Tokina 12-24, the Sigma 10-20, or the $210 more EF-S 10-22. I don't know if I want to spend more on the wide now, or get a non APS sensor sized special lens and get the 100 macro which isn't APS specialized, with the hopes of one day going full-frame sensor.
Hmmm...