Room size & choosing speakers


I am new to all of this and trying to find best size speakers for a small room. I recently listened to B & W 802D's (with a McIntosh MC452 & C-50) at a local audio store & loved the sound. It is a great deal of money for me, but worth it if I can create that magic at home.

My fear is that I will be listening in a 10' x 12' room and that the speakers will overwhelm the room. I also think of the B & W 803D's (smaller, less money, not quite as full sounding), and still have the same fear.

Right now I am trying to decide between the 803D's & the 805D's with a good subwoofer (possibly Rel 328 or JL audio F112). Any thoughts or help greatly appreciated.
mksr
First - thank-you to everybody who contributed to this post. I am new to the site & found all of the information incredibly helpful in discerning what to buy. In the end I listened carefully to 13 different speakers in the $5,000 - $21,000 range and ended up with Magico S1's.
I am thrilled with the choice that I made. I did some of the listening with two friends with great ears and what stood out is that in almost every case we all had the same impressions of every set of speakers. We had the chance to listen to the S1's in a small room (a converted garage) and the musicality, timbre, clarity, fullness of bass far surpassed all of the other speakers in my price range. They are 2 way speakers, but not monitors.
The Magico's can give a stunning 3 dimensional image. Now you understand the difference between 2-dimensional and 3-dimensional. Good luck and a lot of fun.
Just curious about your thoughts on the new Sonus Faber Olympica I.
I understand you didn't care for it, but wondering what specifically you didn't like. My dealer has not received his yet. They look gorgeous from photos, but I am guessing they will be overly warm at the expense of resolution, like other Sonus in my experience...
Sonus Faber does not have the level of depth and wide compared to the Magico's. Respons is also not as quick as the Magico's.
I was disappointed with SF Olympica I. My friend and I both commented after one song that they seemed flat, mushy, lacking in depth or musicality. I have B & W PM - 1's at home (at 1/3rd the price) that sounded considerably better. The sound was so disappointing that I later wondered if the dealer had made a mistake with the wiring in setting them up. In terms of my own ear, they were the least interesting of the 13 pairs of speakers I auditioned. They didn't draw me into the music, where as virtually every other pair did. I hope that this is helpful.