Bought this Duragadget bag (although not from Amazon) so unlike some reviewers who received a different bag to the one pictured, I actually have the black/grey bag that is shown here.
I have a Nikon D5100 with a 18-55 lens and a 55-200 lens. The bag fits the camera with either lens attached, and does not feel tight even with the zoom lens on. There is room to spare at the sides so it is possible you could fit a tube set in aswell (not tried this though) and it has a velcro attachment to make a divider/support within the bag which can be moved around depending on where you want it.
Inside the top flap there is a pouch which can be used to keep extra bits in such as battery, filter, cards etc.
Seems like a decent enough bag for a tenner, and now I can take the camera out and about without worrying I will knock it.