there are many differant brands.. you could do an infinty 12, there buy one get one free at circuit city now, they sound decent for the price, 2 for 105. just buy one and ebay the other or hold it incase you blow it. an amp for one will be easy to find, we have a bazooka that some people like to run with it because it is 160 bucks and pushes 300 watts rms (Same as sub). but you can go with infinity, kicker or mtx (if you stay at CC for stuff) if you did that, your around 250, go to walmart or ebay for wirinng, just a box is needed then, if you wanna buy a pre-made one from CC your looking at 60 to 100 depending on the box.. you can find cheaper though. warrenty on the subs is like 25ish a piece for 2 years. (blow them or anything, just bring em back and get new ones free