Greetings, MJ!
All the best to you building a home studio! Here are my thoughts. For reference, my home studio is based on using two 580EX IIs and one 430EX. I've worked in rented studio space using, among a few different types of lights, AB800s.
The Alien Bees strobes are very good. Personally I wouldn't go with the B400; I'd stick with the B800s for power. On the other end of the power, I've read that the B1600s don't adjust very well, so the B800s are probably the ideal lights.
On light stands, I have two normal light stands. On my shopping list are C-stands, or Century stands. They're fairly heavy duty light stands with a boom. Whereas a normal light stand will bring the light up, a Century stand will help you move it over. These aren't designed for heavy equipment, so you'll need to see what the light stands you are considering can do. In other words, whatever stand you choose, you need to be sure it can handle an AB and the heaviest modifier you expect to use.
You might price a few different types of configurations, one based entirely on ABs, and one on Canon Speedlites. Whereas the ABs have more power and have the advantage of modeling lights, the Speedlites can go anywhere very easily. With the 600EXs and the compatible Canon radio transmitter, the ST-E3-RT, you have built-in radio flash triggers that can use E-TTL. Is E-TTL important to you? Price everything: lights, radio triggers, modifiers, rechargeable AA batteries, rechargeable battery pack for the ABs, et al.
You're near Albany. See if you can rent studio space that has ABs available for use. Experiment and see what works for you. Bring a friend who wants to play Model For A Day.
Everything at the link below was shot with the three aforementioned Canon Speedlites. I used Vello flash triggers (B&H brand), two umbrellas, and Gary Fong light modifiers. My seamless studio space is a one car garage in my suburban townhouse. (On white seamless, use B&H or Adorama as your price standard. Some off-brands like to charge twice as much.)
http://grahamglover.zenfolio.com/p489265664
Good luck! I hope this helps!