Thanks everyone! I really appreciate your suggestions to help me make the choice. I have decided to buy the 7D (may be refurbished if I find a good deal).
However, reading all the suggestions about the lenses, my list of probable starter lenses for the 7D has now grown (previously I was just looking at 17-55mm and 24-105) as each one of these is very good in its own regard. I got a lot of useful information from all you guys but at the same time I got into more dilemma. Please help me decide to pick the best option out of these for a walk-around kit. I know all of these lenses are excellent in their zone. So, if you had to pick your first general-purpose lens, which one of these (or combination of two) will you choose? I think that will really help a lot making the decision.

1) EF-S 10-22mm f/3.5-4.5 USM
2) EF-S 15-85mm f/3.5-5.6 IS USM
3) EF-S 17-55mm f/2.8 IS USM
4) EF 24-105mm f/4L IS USM
5) EF 50mm f/1.4 USM

Thanks so much!
KJawa