A friend wants me to shoot their dance troupe's headshot portraits, against a white background. I have been wanting to buy a portable backdrop kit for a while, so this gives me an excuse to do so. However, my budget is tight right now, so I am in a dilemma. I am trying to put together a complete strobist-type kit, consisting Sb800's/600's, and a separate studio light kit, but can't afford to get everything I need right now. I currently have 2 speedlights, and am considering getting 2 cheap studio lights to use for lighting the backdrop until funds allow a full complement? Does anyone have any experience mixing studio lights with flashguns? Is this a good idea for the time being, until I can afford both a flash kit for location and a complete studio lighting setup?