Which specific CFL lights?
Rgarding color correction, I would imagine there are some that are daylight rated and some that are rated for indor color temps, so, you might not need to correct but that depends on the temp you buy and the accuracy (CRI). I've heard some of the cheaper flos need a minus green, but I haven't actually used any of them yet, I too was once was thinking of trying some of these for an inexpensive/DIY fluorescent:http://www.naturalli...m?&parent_id=31
(an 85 CRI, not terrible, but could need some correction?)
This company also has some specific geared towards film:http://www.naturalli...?&parent_id=73
I also read in another forum thay some of these lights throw off a lot of UV so you might want to use a UV Gel/filter or risk giving yourself or crew a sunburn, does anyone here know if that's true?