Ok guys and all you DiYers, I was gonna try too make a general summary of the LED light build. Basically your first step is todo
research! lots of it!
the second step would be too pick your bulb!
I have done a bunch of research and i have picked my bulb.
I will be using the 660nm 5watt from LedEngin as I believe the Bulb is superior for plants.I do believe LedEngin has done research on it before they stamped it HORTICULTURE.
http://www.ledengin.com/products/5wLZ/LZ1-00R205.pdf
I think am going to start with 15 of them. @ $11ea.
step 3 pick your power supply
the GE TETRA LED ballast will do
Tetra 24V LED Ballast - eBay (item 140205734426 end time May-08-08 10:55:14 PDT)

another possibilty is the 60watt advance driver
(1) Advance Xitanium 60W 12V LED ELCTRNC Driver 120VAC - eBay (item 130194126839 end time Apr-27-08 21:48:56 PDT)

and there is also the Osram 50watt driver
Osram Optotronic 50W LED Power Supply - eBay (item 140155558019 end time May-03-08 14:41:57 PDT)

ok so basically what we have going is 2 types of DiY lights
the one type being a single light fixture that plugs into the wall running approx 50watt to 75 watt.(internal ballast)

the second type using a power supply like the 180watt in redline's
picture.this style is just like the current HPS & MH setup's were the light fixture plugs into the ballast.(external ballast)

step 4 would be to build your power circuit.
this is a little bit far ahead for me ,,seeing how I haven't recieved my LEDS yet or power supply. and redline hasn't gotton the first
660nm running yet so not sure about HEAT!! and heatsinking.

I want to keep this light build simple and easy ,, using name brand cheap stuff that everyone can get ahold themselves

redline you are having trouble with the copper and putting threads in it? aluminum has thread problems too all soft metals
do. i just battled the aluminum threads in the T5 i made and won!
maybe you can drill a whole all the way thru the heatsink and use a skinny bolt instead of screw!! I can't really say ,,gtg bbl