Cooling fan?

I am a new owner of the 7125, and i am extremely happy with it so far. I do notice however the heat this thing gives off, and i was wondering if anyone knew of a good cooling fan to get for this unit.

I use a computer cooling fan which is USB powered in my equipment cabinet to keep the air moving. There are several makes which are cheap and quiet. I actually mounted mine inside the cabinet and can not hear it at all.

Thanks for the response. I'll check it out.