Home Theater 101 - Subwoofer question?


I will bet this is as basic as it gets in my first H/T 101 Subwoofer class, so anyone with a decent HT system should be able to advise me.

I have a very basic and simple 2 channel system for TV and movies (music playback is performed on another system). I don't want to change anything but add a cheap, decent subwoofer to what I already have.

[SYSTEM: Pioneer Elite A35 amp (45wpc), Denon 1930 DVD, JBL HLS610 monitors, Kimber cabling]

There is a slight problem, my integrated amp does not have a preamp or sub output. I have read that it is not such a bad thing to use speaker wire from amp to sub to monitors, and better subwoofer integration is possible. I don't know if this is true but I nave no other option than this hook-up. I'm keeping this amp and would rather not add a sub if adding a sub is ill-advised.

Now that the stage is set, what cheap good quality power subwoofer will you recommend?
128x128mjcmt
This mid-fi TV/movie system is not my main concern, so the emphesis is on cheap. While I appreciate the HSU, REL and the like suggestions I think the Mirage, Paradigm and similar cheap subs are more to my liking. I will continue to keep an eye out for a bargain as it shows up used.
I assume you're ok shopping used? Craigslist has a ton of decent subs under $200. The Paradigm, some Boston, Polk subs are decent for that budget. As for new, partsexpress.com has some decent Dayton subs for the little money invested.
Stevecuss,
Yes I'm looking used, mostly on Craigslist, to save shipping costs. Something will show up eventually.
I would check out REL Subs - First they are excellent and second, they have a Neutrik connection which hooks up directly to your speaker outlets on your amp - they also have a LFE if you did have a sub out on a different receiver - both connections can be used simultaneously and have their own volume controls - makes it easy to integrate 2 channel with surround if you ever went that route - But the speakes conection is what you can use - also makes it easier to integrate with your main speakers because the sub gets the same info as the speakers - Very Cool