Here's a link to the one I use:
http://www.interfitphotographic.com/...ng%20index.htm
I can't get the link to take you to the exact model:
go to "continuous 3200k lighting", then Stellar Halogen , then to INTERFIT Pro 1000 watt Halogen Single head Softbox kit
There's a lot of good brands and types out there...best wishes as you research.