I cheat a little. I use a Dremel drill press. If you clamp everything down tight and take your time, it works fine. I don't think you can drill the holes freehand. You will end up enlarging the hole and will probably break off a bit in the process. If you want to have some real fun, just try getting a broken bit out of the hole
http://www.mytoolstore.com/dremel/drillprs.html