Saw this on sale at the Local shop for $40 so I grabbed one. Currently fits my 20D, 200mm f2.8, 85 f1.8, 24-70, a set of kenko tubes, a couple of batteries, CF cards, charger, and several other small things. Tripod mount was not so great, as mentioned, as well as the zippers--if they were at the top, they can work open and you could experience the worst. I tend to zip them down to one side to help ensure they don't do bad things. The black interior makes it not so easy to find small things in low light. Other than, comfy for short trips, though I wouldn't take it for serious hiking.
I have noticed that the bag does catch people's eye if they see the logo, so I did the black marker trick, which sort of helps.