After months of debating, I've decided I need a wide-angle lens. Top choice right now is the Tokina 11-16 f2.8 DX (original version) but I'm having so much trouble hitting the 'Buy' button that I decided to seek outside opinions. I'm not questioning the utility of the lens at this point - I know it will get plenty of use - I just can't commit to the specific model. Would the Tokina DX-11 be worth the extra $100? I shoot a D7000 so the auto-focus motor is not an issue. I've ruled out the Nikon and Tamron 10-24 f3.5-4.5s (although I'm open to alternative arguments regarding these lenses) and want to keep this purchase below $800 or so. Less is always nice. How would you spend my money?