imho 17-40 is a fantastic little lens on a FF body, on a crop body it's neither wide enough for vistas, nor long enough as a general walk around lens. The IQ is great though and as L's go, this is 2nd cheapest L after the wonderful 70-200 f/4 non IS.
At least for me the focal range wasn't really useful, but I often use my 70-200 as a walk-around :-), YMMV. I really wanted to like the lens more, but after playing with it for almost a month returned it (it was a borrowed lens) and bought a 17-50 Tammy. It's not an L, but I feel more comfortable with it, wish it was 17-55 f/2.8 IS, but couldn't justify the price :-).
JG, if you aren't strictly locked on Ls you may consider this setup:
1) 10-22, 17-55 f/2.8 IS, your current 50 f/1.4, 60mm f/2.8 macro and 70-200 f/4 non-IS, 430ex
2) 10-22, 24-105 and 70-200 f/4 non-IS, 430ex, your 50 f/1.4 and either a 60mm macro or 85 f/1.8. Your sport needs aren't covered with either one, but it's a nice general setup for almost everything else.