My next setup - help

Ok so for my next set up i am going to get a homebox L.

buy-the-homebox.com - universal indoor grow box kit

any bad reviews about homeboxes anyone?

Also plan on getting 600w digital ballast and 6in cool tube for it.
High Tech Garden Supply

and for the fan for the cool tube i was thinking a 6in 250CFM
High Tech Garden Supply

Will that work for the heat with the light? will a 250CFM fan do the trick? Also i have questions about the fans you use for exhaust, will those same 6in duct fan work for the intake and outake?

anyone?

anyone that has used a homebox? or cooltubed 600w? what fan do i need?