Thank you guys. Yup it all makes sense now- I'll post my "spreadsheet"
in a sec.
I did the math and @700mA I'd be around 230 led watts, + the 6% innefficinecy of the drivers comes to 27.6w, then +8 for the fans. So total about 265w, pretty damn close and makes me feel much better. I am guessing I'm over 700mA though supe- say 3-4% more would put out 7.7 more watts which would put me smack dab on 272w. Woop! So, if I really wanted I could nudge the pot down to 265w and be pretty spot on, eh? Think 3% extra current will hurt my luxeons/Crees? But I guess I don't know what they define as "max current" either.
Okay, numbers, sorry for the scribbles ask away if you can't read it.