Where Can i Get MEGA CHEAP Camera Trades/Deals?

When i mean mega cheap deals i mean over the bar.

i want to trade my ipod touch 4g 32GB, Blackberry 8520 (used) and £100 and acouple of xbox games for a Nikon D3100 18-55vr Kit [camera + kit] second hand or new, doesn't matter as long as it is in a good condition and works, thats if there's a deal anyway.

does anyone know a website where i can sell my things for a good price so i have enough to buy the camera or where i can trade all those for the camera?

Doesn't E bay allow you to sell things? You can also buy things there.