Drilling is easy!! I just finished drilling my next project, a 30g. I bought my suplies from Glass-Holes.com. The owners spent way to much time talking to me from Cal. for their own good.

I only spent $30 or so.
I drilled the holes SLOWLY, using play-Doh as a dam to hold water around the hole. ( I couldn't find the plumbers putty). I finished (6) 1 1/8 holes with the bit still sharp and almost no chipping.
I would do it again just for the experience.