I have some AMEX rebates coming in that I plan on turning around to purchase flash equipment to go with my new 5D. Some of the money is going towards some non-flash accessories, but after those items are purchased I'll be left with $600 to spend. Because of how difficult the cards are to use online I'll be purchasing everything as a single purchase through either B&H or Adorama over the phone. This means that Yognuo flashes are out. So what I'm looking at is picking up a single 430EXII as this would meet my basic needs.
Here's where I'm looking for recommendations. I would like to expand my flash capabilities beyond the single flash and I'm thinking of picking up a second 430EXII and maybe a light stand with some sort of light diffuser. To support this I would purchase a pair of YN-622Cs out of pocket. I would be using the flashes for indoor portrait photography. What would you recommend for a stand and light diffuser to get started with? I figure I'll have about $100 to spend on them. I'm also open to other suggestions.
Thank You