Need small subwoofer for thump

First of all my listening room is 10 X 11 so it is small and I have a near field setup which is great. No problems with that. I use full range towers without a sub and the sound is great. They will get down into the 30s; however, my problem is a lack of grunt. I'd like to feel a little bit of thump of the bass drum. I was thinking of adding a small sub just to give me a little bit of physical presence.

Is a sub what I need? If so, what would be recommended.
try the small sunfire subs a small footprint with good bass for their size.
Definitive Technology Super Cube III
I second the definitive Tech sub.
The Mirage Omni S8 is a very competent small sub and they're often available on ebay at good prices. It worked better for me in a small room than the much larger HSU STF-2.