This is not an elaborate tutorial - you don't need a lot to accomplish this, and this post won't talk about editing or lightroom settings.
If you have a large umbrella with a diffuser, you can accomplish a really decent high-key head shot portrait. in this self portrait, I'm using a 60" umbrella with a diffuser and a flashpoint studio 400, which is obscured by my body and head. In front of me to the right is the silver side of a 5 in 1 reflector on a stand, and to the left, a rectangular piece of foam core on a stand, pictured here:
You can achieve some interesting catch-light effects depending on how close or far apart you put the reflectors. You may want to try this with symmetrical reflectors - two rectangles or v-flats I think would be ideal.
Leave a message if you've used this method, or with other ideas.
Thanks for stopping by!