I am kind of a bass-head, so my current little sub is not enough for me. It is 10" and 150 watts. I don't have a large amount to spend so I thought building my own would be the best idea for me. Problem is, I only can afford about $400-$500 before my wife finds out and strangles me. (She is fully contented listening to a clock radio - seriously). I would like at least 250 watts. I use my system for approx 70% music and 30% movies. Box size is not really an issue. Also my basement rec room tends to be a black hole for bass. As I said, I live in Canada, can anyone point me in the right direction? Should I order from the states, or are there reputable Canadian companies that can supply me? Should I keep my smaller sub in use as well?? Thanks.