Depends what your needs are. If I'm out walking in the hills then i use a Lowe Pro day pack which has a section in the bottom which will carry a DSLR couple of lenses and spare batteries and memory cards. If i'm shooting a wedding then i take a Rolling case manufactured by Calumet. I carry 4 DSLR's 2 speedlights spare lenses and a mac book pro as well as a pile of accessories. Its perfect for wheeling around from location to location on the day. I sure wouldn't want to have to heave it up onto my shoulder so rolling it is a must. .

Thank you. I tend to agree the images you posted are excellent. What a dilemma.

Could you possibly download a couple of image taken with the Sigma 10-20. I see there are a few examples taken with the Tokina 11-16. The Tokina's loads more money. Can the extra expense be justified ?

Im looking for a similar lens and doing some research on this at the minute. I've heard that the 11-16mm Tokina is an excellent lense. Does anyone have any information on this ?