Where can i buy good cheap/used/new electric airsoft guns?
Look on www.airsplat.com. They usually have great prices. And if you are good at fixing up guns, you could always buy a gun from an airsoft boneyard.
Gander Mountain, and even Wal-Mart has some nice ones.
Walmart has some.
look on kijijji, or eBay, you can find some for really good prices on those!