THX speakers for HT?-Atlantic tech 450,s, M&K 150s


I'm looking for speakers for a home theater. The room is about 3,000 c.f. Use is 85% HT and 15% audio. Marantz-18ex receiver. I like the Atlantic Technologies 450's and the B&K S-150thx speaker sets. Both are in the same price range but I can't deceide and also don't want to overlook other options. Any info or suggestions appreciated.

PS. My wife hates floor stand speakers.
radlink
Radlink,

I am selling my AT System excluding the sub for $1,500 delivered. They are in excellent condition and I have original boxes and owners manuals. I sold the sub last year and replaced it with a SVS sub which is much better. The AT sub is the weak point in the system. The system includes the optional pedestals for the left and right speakers. If interested you can e-mail me at thomascls@email.msn.com

Thanks,
Thomas
which svs sub did u get? and have u compared it to the m&k mx350 and also the velodyne hgs 12?
i currently ordered the svs pb2+ and am looking forward to hearing it side by side with the m&k that my friend has.