If you're looking to save a few dollars and like primes, you might consider the sigma 30 f1.4 as your "general purpose" lens. It's obviously not a wide lens on a crop body, but otherwise it's very versatile. It's currently my general purpose lens.

Otherwise, I think the 70-300L, 100L macro and efs 17-55 make the best combo. I have the 70-300L and 100L. Both are spectacular.