Selling photographs?

[SlowStig]

Can anyone advise on decent websites to sell photographs though? What are the rough costs involved? I am nowhere near a professional, however I wouldn't mind trying to sell some of my shots to see if there is any demand for them or not.
Do any of you sell your photographs in café's or local shops? How did you go about approaching the business' and pricing up how much each photo is worth?

I would appreciate any input so then I can look into it and see if its worthwhile or not.

[SlowStig]

I have wondered if it might be a small fish, large ocean situation with selling photographs, but I just thought it might be worth looking into as a bit of a side-project and a hobby rather than a full time job-replacement. I found after going into IT, not to do what you enjoy as a job because it takes the enjoyment out of the hobby!

I will give some of those sites a go myself, I presume they all charge to host your pictures or do they allow a set amount before they start to charge for hosting?