I have used halogen shop lamps before but you have to bounce them off the ceiling to limit shadows and may have to use a reflector of sorts (gold, silver, or white construction paper works).

If this isn't for a studio type shot it adds to the difficulty so you really have to get creative with the ghetto rigging.

I found that taking a medium sized lampshade and a clamp lamp with a 75 watt bulb works. What you do is put the lampshade over the metal shroud of the clamp lamp then attach pantyhose to to the lampshade to diffuse the light a bit. I have used white, and pearl colored pantyhose and they seem to work well with a little bouncing of the light and distance placement.