Update: I had power run to the closet while a contractor was at my house doing some ceiling repair. 
Added a big Honeywell Humidifier.  
Now it's time to add some fans.  Was thinking about a couple of PC fans on a timer of some sort.  I suppose I could plug them into a computer power supply (have to be old style, I guess, not ATX), which is in turned plugged into a timer of some sort.  Is there a more elegant solution?  Or at least one that won't take up so much space?  As you can probably tell, I'm not very handy 
