Put another one in the Targus category. Here's mine:
http://www.targus.com/us/product_details.asp?sku=TSB315
I bought one of these sports bags two years ago and have used it non-stop ever since. It has an unbelievable amount of room in it for tools, software, cellphone, keys, books, etc. It also can carry a desktop replacement large-sized laptop with no problem.