How about some simple inexpensive compact florescent
lights? I know the results are certainly not like MH or
hps but they do work. I built 2 lights for very little money.
Check out this youtube link for the video about how to build these.
http://www.youtube.com/watch?v=Rs_QRorECvo
and the results of this guys build...
http://www.youtube.com/watch?v=6zNxabqqRDU
David