sorry for my first post guysi i was pretty rushed when i posted, i planned on coming back to clean it up, and add my suggestion (exactly what yaksplat suggested) but i sort of forgot too..
thai- the point i was trying to make.. was just to use a transformer, if the fans you run are less than 5watts why go way over board on 200watt ps? i know what you mean by recylcing what you have at home.. i do it all the time, but sometimes life is less complicated by not recycling. If you go the ps route, you will have to do a little more work and have to put up with a noisy ps.
i don't know why i bothered to say it was cheaper.. i leave my machines running 24x7 too, and i believe my engery bill has went maybe 4bucks a month. sorry for saying that.. i don't know where my head was.