Studio Lighting and stuff like that.

[Village Idiot]

100% agree with this.. I only use speed lights, and they work just great.. however, the OP is looking to start a studio, a legitimate business if you will, and I truly believe that you should do things like this with excellence, and if you've got the money to get the right gear in the beginning, then you should...

if i walked into a studio and was pay 50, 70 100 bucks per sitting, plus the cost of prints, and they had 3 or 4 speed lights set up, i would think it was a joke... however, when you see softboxes and studio lights, its much easier to not worry about paying so much money

Like the setup at The Picture People, Sears, or Walmart.