What kind of active speakers?

I am setting up a small 3/3.1 system. Due to space constraints within the room and within the TV stand, and maybe preference, I am hoping to use stand mounted active monitors. I'm aware of Paradigms older active 20 series that pops up occasionally for sale here, as well as Quad 12L and the Dynaudio BM actives. Do folks have other ideas? Also, I was planning on using a third monitor for center channel duty. Is this advisable or is there a center channel dedicated active speaker available, or maybe a set?

Thanks for the help!