Subwoofer for Magnepan 1.6's


I have a pair of Magnepan 1.6's, connected to a McCormack DNA 1 amp and tlc1 preamp. Eventually I will be incorporating them into a surround system, using the Arcam AVR 300. I am looking for a good subwoofer to go with the Maggies. I have a small listening room 11 x 14 and don't like boomy bass. I have heard good things about the Rel 3 and Vandersteen subs.
dgplo
Thanks for all the good suggestions, should make looking for a sub a fun process...
Dgplo - Awesome, good choice. Were you able to integrate it pretty seamlessly with your maggies??
It is pretty seamless to integrate, I never have owned a sub, my dealer was great in helping me to set the thing up correctly. This cut down the learning curve with the thing, I'm sure I would still be tweaking with all the set-ups if they hadnt' helped.