[quote name='thewatcher']Have you sold to Secondspin before, how does it work?[/quote]
Compile your order on their website.
Checkout.
Send them your stuff via Media Rate.
They send you a check (for real cash) in about 3 weeks.
Be very certain that all of your items are in great condition, they'll reject anything that isn't up to snuff. Rule of thumb would be if you think you could list it on eBay as near mint, they're good enough for the SS.