Here are two posts that you really want to check out.
1. A white seamless tutorial (Part 1 here, part 2 here), in it he covers what gear you need, how best to set it up, and a bunch of other tips that are important to know and at the same time make life a bit easier.
2. During his 3 day workshop (that was free) with CreativeLIVE Zack shot with a ton of modifiers and softboxes and in this post he shows (with images) how they will light your subjects differently. It's one thing to understand (intellectually) how a softbox will work and another to see them compared side by side in pictures. It's interesting to see how much different the light is between a 7 foot and a 4 foot octabank, it was more than subtle.
Yet more proof he is smarter than me, but you knew that.
;)
Back to the CreativeLIVE studio lighting class, I watched it live AND bought the video downloads, it was worth every minute (and penny), you can still purchase the 3 day information filled seminar for just $149.