OK this is my first entry, so I hope it's ok.
They retail for £65, but on Amazon UK you can get them for £39.55 and free delivery if you use the Supersaver delivery.
Details of the bag:
Lowepro Fastpack 200 Backpack in Black.
Go all day with the lightweight, comfortable Fastpack 200 backpack. It protects your digital SLR compactly while providing generous storage for your other gear. Side-entry compartments let you quickly grab equipment and accessories, even while youre on the move. Customize the easy-to-access main compartment with adjustable dividers.
Capacity:- 1 DSLR with mid-range zoom lens attached, plus 1-2 extra lens or flash units, audio player and lots of room for personal gear
Size(Interior):- 11W X 5.9D X 9.3H in./ 28 X 15 X 23.5 cm
Size(Exterior):- 12.4W X 8.1D X 18.1H in./ 31.5 X 20.5 X 46 cm