OK Doc, I got here a little late but I'm sub'd. Lets get this room built!
First things first.
CAP & Powerbox both make great controllers. Powerbox is more like a Mercedes and CAP a Toyota. I got my 15000 for $589 delivered. In the future I'd pay the extra $100 and get the hot start delay. CAP offers both a Dual Trigger & Single Trigger model as far as controllers go.
I want you to know from experience about Magnum hoods & Digilux bulbs. First and foremost there is alot of hype surrounding these new large reflectors. They pale in comparison in terms of penetration and you actually lose alot of lumens due to the light traveling so far and wide (ESPECIALLY in the 8"). Trust me when I tell you you are much better off with a smaller reflector (think Daystar or SuperSun II). The Digilux bulbs are NOT living up to the hype. I have seen them in action tested side by side with Hortilux, PlantMax, Ultrasun, Eiko, Agrosun & Ushios. The proof is in the pudding and Hortilux wins by a mile. The Digilux's FOR A FACT do not deliver nearly as many lumens as they claim. They are flat out LYING. Dude please believe me when I tell you I have tried them ALL. Off all the setups here is what has worked best after EXTENSIVE testing:
Quantum Ballasts ($250) x4 = $1000
DayStar 6" A/C reflectors ($125) x4 = $500
Premium bulbs ($79) x4 = $316
Powerbox DPC-15000 ($589) CAP MLC8XT ($211) x1 = $589 or $211
Total: $2405 (powerbox), $2027 (CAP)
There goes most of the budget right there. We still need Ferts, Medium, Filters, Fans, Co2, Containers, Cloning Supplies, Water Purification, PH/PPM Meters, Pumps, etc.