although in a slightly different league of the 35/f2, i absolutely LOVE my 24/f1.4 on my 7D....
it's a totally wonderful lens and lives on my camera most of the time now as i find that it's just right for framing and it can also focus quite close which makes it very versatile for my uses. if you plan to be stuck on photography for awhile i recommend getting this lens because it makes using a crop body much more joyful 
How would you guys comparevthis 24mm 1.4L with the 35mm, 1.4L still by Canon? I would guess a 35mm is closer to "normal" and would also be such on a FF, should one decide to eventually upgrade... Right?
i was deciding between the 24 and 35... but eventually i chose the 24.
why?
because i often go out for dinner with friends and i do some concert photography both scenario which often demands a large aperture. as such the wider 24 is more useful for me and i can still fit in a few ppl in my shot where as had i got the 35 i'd be just picking out individual people. i like composing wide.
another reason is that i have a 50 f1.4 that although is not L, serves me fine for low light.
the difference in perspective between 35 and 50 is quite little so with respects to the cash outlay, i deemed that the 24 would give me a more unique perspective.
food photography using the 24 is absolutely awesome i must say

i am going to upgrade to FF when the 5d3 comes out which will make my 24 quite wide, but im cool with that.
i love night street photography and for my style of shooting, the 24 is fantastic to be able to get the ambiance of the scenery as well as its activities.
failing that, theres always foot-zoom so it's all good

at the end of the day it depends on what you like to shoot and what you plan to use it for.
If the 24 is too much for you and you arent sure if you will move up to FF, i recommend the sigma 30 f1.4. great price, decent resale should you wish to sell later and performs quite well too. my mate has one and if i werent planning to go to FF later, i wouldve picked that up much earlier