I think your quandry is whether (and when) you want to switch to full frame. Per the other responders, I'm a little puzzed by your shunning your 17-85. It's seems a bit of a smoke screen you're foisting on yourself. It's a "decent" lens, with good range on crop factor. Main downside imho is it's way too slow for low available light shots. FWIW, your 50mm f1.4 will really shine in the lowlight department, on full frame. Hmm...:


With what you have now, I'd pick up a 10-22 and give it a try. If you do go to full frame (and don't retain your crop body) it should be fairly easy to resell the 10-22 without much loss.


If the full frame switch is imminent, I'd also consider the 17-40. It also makes a nice walk-around lens on crop bodies I would speculate, though I've not used that combo myself.