whats a good make ???

bascically ive won this.....

http://cgi.ebay.co.uk/ws/eBayISAPI.d...e=STRK:MEWN:IT

is it any good firstly ?

now i need an amp to power it, not knowing hardly anything about car ice can someone help me ?

if the sub is rated at 450w do i need a 450w amp ? does it need to be 2 channel bridgeable or a single channel if you can actually get them lol

dont wanna pay loads for the amp but dont exactly want a shat one either,

help lol............matt