Thanks Mike55. I already bought the 15-85mm and I'm really glad I did.
Shooting with the 10-20 and 50 1.8 II will help in avoiding "tourist" shots.
I just went on a tourist trip with the step parents for 2 days at some remote resort. I can see that when I got that "tourist shot look" it's because I rush to take a photo without looking at my specs. Also I miss experience and should really kick my ass to shoot manual and stop to check my shutter speed and aperture each time I fire. Now I dont. I just get exited and shoot at everything! Of course, shooting RAW help because I can fix all exposure errors in post.
I'll get an UWA in the future for sure! Until then, the 15mm end will have to do.
@davomate: Hey, sorry, missed your post yesterday. The 135L is very tempting but as I already have a 85mm, I though I should go the farthest from it. Also the 200mm is 220$ cheaper than the 135mm. But you might well be right. The 135L should be easier to use in low light, handheld.