Hi everyone. I'm new to laser projectors and I am planning on building or buying my first one...but I have a few questions if anyone can help...For one, I'm looking to spend between 500 to 1000 overall, and am trying to figure out if it is more cost effective to build or buy...and also, as far as bang for your buck, who are some of the better online sources? I found a few on ebay, and I dont really trust them, has anyone else had luck? Also for laser strength. For balenced colors and white...For every 100mw of green do I need 200mw of blue and 300mw of red?