I haven't gotten any banana plugs yet, but like most on here I will recommend Monoprice even though I've yet to order from them (probably will this week for my speaker wire and banana plugs) I'll be getting a 100FT of 12AWG speaker wire and 14 pairs of banana plugs...
this might help
Noob? - Banana Plugs
And some Monoprice links for you. There are two types of banana plugs - Open Screw & Closed Screw
Monoprice Speaker Wire
Closed Screw Banana plugs
Open Screw Banana plugs