I'd say go with eBay. You're more likely to get a 
better price for them, honestly, in my opinion. I 
don't know that Half.com has any advantages 
and eBay is higher visibility. Half.com has kind 
of an awkward way to locate what you're 
looking for, especially if you're selling any 
DVDs, so more people will see your item if 
you put it on eBay. 

Ayaka