Dude. I've been expecting you! Been watching your "like" alerts all day and figured you were either hard-up for "like" points, or you were enthusiastic about what you were reading. From your post, I suspect it's the latter.
I checked out your concurrent thread and you're paralleling my situation pretty closely. If you go with the EB's -- which I highly recommend for a number of reasons -- you are gonna fall in love with these lights. There's no doubt you can get a bit higher efficiency with QB's or Sammy H-series, but as you've pointed out, going to the cutting edge will come a much higher cost, and a year from now there will be something with incrementally better specs, but at a multiple of the cost, much as the QB's and H-series are now. Just depends on your priorities.
Yeah, no kidding. During my first grow I posted my newbie questions on another forum and while I generally got a few answers, nothing of the quality and positivity that I've experienced here on RIU. These folks have been great and I wouldn't have been semi-successful had it not been for their help.
However limited my experience might be, it's worth pointing out a couple of things that I didn't anticipate. First, leverage the capability of spreading the strips out over the whole grow area. Look back a couple of pages on this tread and you'll see my discussions about spacing out the strips over the whole scrog canopy. Doing so will assure optimal light spread over the entire grow area, not jut the middle.
Secondly, when I was first ramping up 6 months ago, I struggled with how to setup the 4 small fans I had in order to give my girls circulation and movement. Trying to optimize for space in a 2x4 grow area resulted in the fans taking up precious floor space and hanging from the walls, etc, and even then they only did a half-ass job and I had to keep adjusting them. Now, with the aluminum frame, I just picked up 2 x 19" fans from Home Depot for $20 apiece, and laid them face down on the light frame (you can see them in some of my photos). This way, they keep the lights cool, and also blow down through the frame to keep the air moving through the plants below. It's all the circulation I need. Just be sure to build your frame using 0.125" x 1 x 1 angle-aluminum. The heavier metal provides a better heat sink, and gives the structure you need to support fans, or whatever else you want to put above the plants.
I'm happy to answer questions or provide input on your design.