I recently set up a system of 4 clear tented plastic bins under flourescent lights to root several ogr cuttings in solo cups; it is very similar to the one described in George Mander's article, Cuttings from Cuttings (from cuttings):

http://www3.telus.net/georgemander/articles/cut_from_cut.html

Because my mini greenhouses are not in a cool basement, I was having trouble keeping the temp inside the bins below 75, until yesterday when I discovered an easy fix. I added a 24 oz solo cup of solid ice to each bin, which keeps the temp closer to 72 degrees nearly all day. I hope this will help to promote root growth!

After 2 1/2 weeks, nearly all my cuttings are thriving and many bud eyes are sprouting out. I'm thrilled! (as this is my first attempt propagating) and hope that roots soon follow.

Incidentally, I am also rooting cuttings in clear tented solo cups, under the same lights, to compare progress.