Past couple of weeks i've seen a couple of links that others may like to know about, or may already know about.
MIDI to Gcode web app: http://en.homeconstructor.de/converter-convert-music-in-g-code.html
This link takes you to a web app that converts your MIDI files into gcode, and in my opinion is a lot easier to use than the python program that does the same (mainly because i cant get the python one to work.)
Monoprice.com sells 3d printer filament! http://www.monoprice.com/products/subdepartment.asp?c_id=107&cp_id=10724
3 colors in 3mm and 1.75mm. They do not mention the tolerances of the filament though. Has anyone tried this?
These two links may be old news to some, but some may find them new and useful.