Had moderate success setting up our spare room into a 'brewing room' last year at uni.
The problem we had was controlling the temperature, but I'm sure there are more sophisticated ways of doing this other than turning a fan on when it got too hot.
First batch: Bit rubbish, cloudy, too strong.
Second batch: Tried to rip off London Pride, made it too watery
Third Batch: Rip off of Hog's Back TEA... worked a treat. Tasted pretty close to it, and we used stuff called Irish Moss which apparently helps the cloudiness disappear! Seemed to do the trick.
Looking forward to setting it up again next year.