It is possible. Now I wouldn't recomend them if you have an actual studio. If you are just getting started and cannot afford a light kit at the moment, they are fine. And if you have photoshop your results will be 10x better because you can adjust the white balance and exposure afterwards (if you don't get it right the first time). Yes, they get really hot. Big deal, unless you are clumsy and have kids running around like their heads r cut off!
Attached is a portrait done with ONLY halogen worklights, in case you are wondering just what type of results you can have. Only 2 worklights (4 lights) were used (about 60-80 bucks). Of course you have to diffuse it as well.
littleSis1.jpg