Best places to sell domains?

[Tim]

I have quite a number of valuable domains that I would like to "cash in" on but I'm having trouble finding a good place to sell them.

I tried eBay and got a great response but of the two domains I sold neither buyer paid (leaving me about $150 out of pocket in eBay fees overall, hopefully I will get most of that refunded)

So I just made my first listing at flippa.com but they are very expensive and too expensive to put your whole portfolio up if you don't expect all your domains to sell for a good value.

I have also tried SEDO but got pretty much no response.

So where else do people sell?