How Do You Re-Sell a Domain Name?

dclayman wonders: " I've never sold a domain before. I just received a $400 offer for a domain I own (radicaltrust), but I don't know if I should sell it or auction it off. If I auction it, what site should I use? I could really use the extra cash, and I was hoping to get some ideas and advice from other readers. So, what's the best way to go about selling a domain?" Of course, selling your domain is only half of the issue. What's the best way to go about smoothly transferring the domain, once it is sold?