WOW, thanks for all the information and assistance. So, we spent some time researching the various recommendations last night. We are narrowing it down to two vendors right now and plan on calling them tomorrow morning to discuss a few questions.
First we like this setup:
http://www.amaretechnology.com/product-page/662befd5-fab5-fac8-f485-c0b1665ab157
the second, and we have been looking at it closely is the Timber setup:
http://timbergrowlights.com/600-watt-citizen-clu048-4x4-framework/
or, we may do two of these Timber setups:
http://timbergrowlights.com/300-watt-cree-cxb3590-square-framework/
What do you all think about these selections for an approx 4x4 space? might be able to stretch it to a 4x6'.
again, we appreciate everyone's input as LEDs are all new to us.
shann