Hi Rick - I don't remember seeing much on that in the Mixing Engineer's Handbook, but he has a companion called (duh) the Mastering Engineers Handbook, I think that had some more.
I'm still learning (aren't we all) but from whan I know so far, I wouldn't be inclined to mess with mid or farfield monitoring in a room that was less than about 30 feet long, with corresponding dimensions in the other two axes. Midfield generally refers to a listening distance from speaker to ear of about 10 feet, and you NEVER want to be dead center in the room (other than side to side) plus you need at least a 20 foot path from your head and back for the shortest reflections, so 25-30 feet long dimension seems to be minimum for good midfield.
Stretch that out to 15' or so between farfield soffits and you, and the room grows to at least 40 feet long. Divide by 2.2 for one of the more popular ratios (rectangular room, anyway) and you have a ceiling of 18 feet if you want soffited farfields.
Point being, it takes some serious real estate to get a room big enough to support big speakers. On top of that, you can easily spend $50k or more on soffited speakers, so I've decided not to try that route on my beer pocketbook. I had been thinking about trying to design a facility that could also be used for serious mastering in addition to tracking/mixing/post, but have come to the conclusion that it's out of my range.
If you just want big speakers that can be loud and impress people who know nothing, you could do that and make it LOOK like a real studio to the un-informed, for about $1000.
I guess if you had the room, something like the kits Barefoot likes could be done in a control room - The area I'm still studying is that of creating different room acoustics for different purposes, and whether or not one room can be changed enough to become a different purpose. For mastering, you want a "perfect living room", so the result will translate to homes - for tracking, you want a "perfect concert hall" with adjustable RT60, for control room you want a "perfect nonentity" room that won't cause you to over do 'verb or underdo it based on too live or too dead, and so on - all this adds up to a shitload of time and money if you want the whole enchilada, which I do, but since Bill Gates hasn't officially declared me a charity yet, I'm re-thinking...
Meantime, since KRK's were invented by a traveling mix engineer who got tired of having to re-learn speakers, and then decided to start selling them by popular demand, they seem to do a good enough job, along with a sub, for what I do. I may change my mind if/when I get enough dedicated space to experiment, who knows?
There, howzat fer a non-answer?
Revenue reinbursement ties. 
