Just got myself an excellent condition 5D2 at an excellent price. I was most excited to use this camera for portrait work, but I realized I should probably take advantage of the field of view and sharpness by using it to do some landscape work as well.
I currently use a 17-552.8 IS on my 7D for landscapes, just wondering what an affordable landscape lens for a full frame camera would be.
Budget is $550 +/- 100 or so depending. Right now, it is looking like the 17-40 would do me justice, but I am open to other options / third party lenses / primes as well.
Input much appreciated.

, but wide angle lenses generally lend themselves more towards it, and this being my first full-frame camera, I want to take full advantage of that. I have used my 70-200 plenty of times for nice landscape, but 70-200 on my full frame isn't as vastly different from a crop as it is on the wide side (17mm crop vs 17mm FF).
