Hi, I wanted to chime in as I was researching EOS Lighting LLC/Dayflo FX Lights as well. The kits look amazingly cheap for a lot of light output. Alas...these are apparently the next generation of Britek lights which supposedly are built better, but who knows. They often showed love/hate remarks in previous incarnations.
In any case, I would be VERY cautious at buying from Eoslighting.com, dayflolighting.com, or anyone else selling these exact lights. Apparently these are all different sites/domains/LLCs for the same guy who has had a lot of complaints as they operated under numerous names...the last I could find the most info on being Pacific Coast Lighting. If you did a little research, you would notice the contact info is the same for both.
http://dvxuser.com/V6/showthread.php?t=109736
(many other discussions about them as well elsewhere, just google Pacific Coast Lighting)
Complaints of outright fraud, not shipping orders, broken products with no customer service, etc. Sadly no real reviews of these newer "Cheapo-Flos".
If I ever tried them, I would definitely demand COD delivery...and if they didn't want to do it, good luck lasting in the market place with those business practices.
I use home depot bought ballasts and 4' T5 Daylight balanced bulbs...and they do work wonderfully for certain things (like photographing artwork). I personally found them really hard to work with when trying them for full length portrait though and never could quite replicate that DIY video in terms of pulling out his fstops and shutter speeds. (which is what sparked the interest).