Hey Rudy, carpet sucks up high frequency. Which is ok if you need it. But personally, I would keep the wood floors and throw down some small area rugs as you need it. Makes for diffusion also, as there is what's known as an EDGE effect, when you have small patchs of absorption, and small areas of refection. This effect, actually will account for more absorption than if the whole of the absorption were one large piece. Being as carpet absorbs highs, the small patches of reflection from the wood floors will make up for it to some degree, but allow for a more diffused quality. Believe me, I've heard it and it sounds much better. The wood also looks great. Once you put in a couple of bass traps, and some areas of absorption material, man, you will be amazed.
Take a search through here for "703". Don't laugh. This stuff works great.
Bottom line is small rooms accentuate low end, which in reality makes recordings sound muddy. Then they DON"T translate to other rooms and systems. If you absorb the lows and low mids, and diffuse the upper mids and highs, your recordings will sound much better, because the more you absorb lows, the better it sounds. Hence the use of bass traps. It is way beyond the scope of one little reply to explain it, and I'm not even qualified to do so, but I think most people here will agree. Your room dimensions are what really dictate which frequencys will be a problem. And MOST rooms of this size will benifit from bass trapping. Again, beyond the scope of this discussion.
However, realize this, even $3000 monitors will still lie to you, unless you treat the room correctly. They may sound better than what you have, but in the end, even they will not tell you truthfully what you have recorded, because the room "color"s the sound the mic's are picking up, and then, does it AGAIN when you play it back, so now you really don't have any reference point for your recordings. The more you EQ it, the worse it becomes. Get my drift. Anyway, good luck and I hope this helps some. Again, only my .02
Oh, btw, if you can find some slatwall, they make guitar hangers that are used in music stores, that fit slatwall, which allow you to move them anywhere, anytime, any level. Thats what I use and they work great.
fitZ.
