Here are the heat sinks I found on Ebay. Nice. He has them in 10.125" wide. He just hasn't put that auction back up yet. $47 shipped per foot. 2.5" fins.

HEATSINK ALUMINUM EXTRUSION LARGE BIG 8.5" WIDE - eBay (item 170389589478 end time Oct-08-09 15:10:15 PDT)

His 8.5" wide one has only 1" fins. And is $68.50 shipped for two 8.5" x 12" pieces. Better?

I could do two lights...but would still stay at a max of 8 reds due to the extreme cost of going beyond that.

I have to be sure I get seeds so I know exactly what I'm working with. If the 15W can throw the light nicely, then 8 reds should cover 3'x3' effectively. I use a DR100 which is lined in all silver. Very nice. Light bounces everywhere!!!

A scrog with four plants is the most I think I could ever fit. Especially if the light is doing it's job. So we would be looking at covering a level 3' sq area. Best due to the LED's lack of penetrating power.

So what do you think? Two 8.5" sinks, 8 reds, 2 blues, one mastech, one 60-12, one 60-15, and two fans?

If I do that would I mount the blues on the inner sides of the bottom of the sink so they stay towards the center of the room?