Kata DR-467i Digital Rucksack - £80/$80
Curvy but not quite as rounded as the Crumpler Cupcake, the Kata DR-467i is a bag of two halves. The lower segment happily plays host to a DSLR with attached kit lens, three additional lenses and a flashgun.
As usual, you can substitute the flashgun and pack an additional lens, the maximum size of any lens being a typical 70-300mm f/4-5.6. The upper half is a hold-all for day trip essentials, but it's larger and more accommodating than that of the Hama 170RL.
There are three additional external pockets on the front of the bag, for bits and bobs, plus a laptop section at the rear. The latter has its own zip, so you needn't open any of the other internal or external compartments in order to get at your computer. The divider between the lower and upper main sections can also be unzipped and removed if required.
One of the things we like most about the Kata DR-467i Digital Rucksack is that the photo section at the bottom hinges out after you've undone its zip. This makes accessing all your camera kit particularly quick and easy. The back of the bag is quite hard, with relatively little cushioning, so it's not particularly comfortable to wear. At least it's compatible with the Kata Insertrolley frame, giving the option of rolling it around on wheels.