I keep coming in here and studying this Ken LOL...

What are the differences (as far as the photo goes)between using umbrellas vs soft boxes?

What do you think of this deal, does it have everything I would need for a set up (not counting the backdrop of course)?

http://www.alienbees.com/intergalactic.html

Also would it be possible to use a white 10' x 10' EZ Up type of canopy with sides, as a portable studio to set this all up in?