Best place to sell Lego?

[broken biscuit]

Having been recently burnt on ebay, I am wary of selling on there. I have a few sets I can't even price, due to none being on ebay for sale. Can anyone recommend a forum or site to get a reasonable guide price and advertise the sets?

I have the following sets if anyone could give me an idea what they are worth please?

Lego 4210 - Coastguard platform - 100% complete, box, instructions
Lego 8292 - technic Cherrypicker - no instructions or box, power motors work fine, think is 99% complete
Lego 8043 - Technic Excavator - 100% complete, box and instructions, power motors etc etc
Lego 7994 - Harbour - 100% complete, box, no instructions
Lego 8053 - Technic Crane - no instructions or box, I know 1/2 bits missing from outriggers
Lego 7685 - City Bulldozer - 100% complete, box, instructions

I know they are all now obsolete kits, and don't want to let them go for less than market value, but equally don't want to hold them forever as the resulting £ is earmarked for coilovers andtoys for my new project.

Any pointers welcome

[Collectingbrass]

You could try http://www.bricklink.com/

I've never used it but heard good things about it.