Lighting question for growbox setup?? Need Help!

Hey guys, I was thinking about putting together a growbox about 2' wide by 2' deep by about 4' high. I was thinking about getting a 125w HPS on the canopy and then either 2 cfl's on each side of the plant or a 2' fluorescent tube light on either side. I would have a 4" active outake at the top with a 2" passive intake at the bottom, probably use a little computer fan or something similar for the active out take. I was just wondering if this would be sufficient for 1 or 2 plants, and if I did everything correctly, how much yield do you think I could get out of 1 or 2 plants given the dimensions of the grow box? I know that is a broad question but any ballpark idea would be appreciated, thanks!!

Yeah that sounds pretty good, I'm not 100% about the 125w HPS but others can tell you if you need something stronger.

What light are you using for veg?

Right now I just have the pots outside so I am using nothing. I am a first time grower and I'm not all together sure what to use for veg, probably just some fluorescents for veg, then switch to the cfl or tube light mixed with the HPS. Anyways, keep the advice coming guys cause I'm hurtin, thanks!

You know what, on second thought, maybe I'll just invest in a 400hps, if I got a 3x3x5 or so grow box, maybe mixed in with some cfl's. If I got good ventilation I would think that setup would work. I'm confused though how can I cram all the lights for vegging and all the lights for flowerin in the same cabinet? It would seem to be easier to just setup 2 different boxes, one with just fluorescents at like 6500k for vegging then a different (bigger) flowering box with 2700k fluoro's on the sides and then a 400hps on the top.

Well whatever works the best for you is the way to go. There really is no "best" way. Everyone has a unique grow area/situation.

You could install hooks in the ceiling of your box to hang the CFLs from, or like you said, you could have two boxes. That way, if timed right, you could have two grows going simultaneously! :D

Also, you're probably better off going with the 400w, that way you are prepared for any future grows.

Ok, I think I got it figured out. I'm going to build the box about 30"x30"x 5'. I'm painting the inside flat white and caulking all the inside seems for light proofing. I'll have the 4" active outake with a computer fan and the 2" passive intake, using black abs pipe for light traps at all the holes, (caulking around them as well) For the lights, I'll have 4 40watt cfl's hanging down for the veg, then I'll have a 400hps on the top and 4' fluorescent tubes on the three walls of the cab, not the door (not the door). Home depot has some natural light indoor plant tubes I figured would be good. I'll probably also have a fan blowing over the plant along with the other ventilation. I'll be posting pictures when this all starts, it may be a little while, but it's definitely happening Again, any further input on my ideas is appreciated thanks!