Koo also provided handouts of articles she's authored for The Artists Magazine. Lighting Your Studio from the October 2010 issue provides excellent thoughts on handling lighting in the studio.
Summarizing, when selecting lighting, look for Correlated Color Temperature (CCT) around 5,000K and Color Rendering Index (CRI) of 90 or better, 100 being the best.
I've poked around quite a few manufacturers's sites for compact fluorescent bulbs and these from BlueMax look interesting: http://www.bluemaxlighting.com/compact_fluorescent_39_ctg.htm
BlueMax was the only manufacturer I found that supplied both CCT and CRI. Most had some fancy lingo and no hard numbers. (BlueMax did report that Ottlite has a CRI of 95.)
Three of these are on their way: