I would take the time to look at the Spiderlight from Westcott. They have a few different kits available, very inexpensive and such a great value. I have a pretty good inventory of lights, but for indoor interviews this is the best kit for the money. They have a "location kit" which gives you a few different sizes, very versatile. It packs up very small. You can also get extra soft boxes for these in any size they make and add this to your kit. along with some extra or different size bulbs and now you have a kit that is really versatile.
One of the best values I have found.
