$250 budget for a Sub - what are my choices?

[kurtlingle]

Ok,

I've been reading just about all the threads for a month or so, and I am ready to buy a sub. Currently I have a cheapo Yamaha (YST-SW50 - 70 watt) that I want to upgrade.

My budget is no more than $250. My room is 18x12x9. I have a Yamaha 663 and Sony speakers.

I'm leaning toward the PA-120. I'd like to make sure I'm not missing any models that are comparable (price). Here is what I think I need to choose from. Please add to the list if you know of one I am missing.

Premier Acoustics PA-120 (12 inch)
Bic America V-1220 (12 inch)
Audio Acoustics HD-SUB12 (12 inch)
Polk Audio PSW505 (12-Inch)

Are there any other choices? I don't want to go over $250/$260 (my original budget was $150). I'm open to spending less than $200 But I want a 1/2 decent sub.

I'm pretty sure I want the PA-120 - but please let me know if I'm missing any subs in that price range (the ED is to expensive - $250 is my limit).

BTW - thanks to all for a great subwoofer forum - Big Daddy - your threads are awesome.