I've been extremely satisfied with my Genesis 200 - 2 light kit that includes stands, umbrellas, reflectors, all cords, modeling lamps, and lights for a single, affordable price of $320 here: Calumet Genesis 200 Kit
. This gives you everything necessary for quality portraiture in a single purchase and allows you to hone your skills while not breaking the bank! Then pick up an inexpensive softbox for an alternate to the included umbrella on your main light and you're good to go. You mention continuous lights, but I'm a fan of studio flash with modeling lamps. Hope this is the info you're seeking.
Alien Bees also have a solid reputation with numerous users throughout the forum too. I've used them and think they're great as well, but they aren't quite as strong as the Genesis, and for $309 from the manufacturer: Alienbees.com Beginner Package
you only get ONE light, stand and umbrella so it's not as cost effective.
Here's two example portraits done with Genesis 200's in my first attempt using them. Lyndsey was shot with two Genesis 200's on her, with addt'l pair of Genesis lights on background. Devin was shot with same two Genesis 200's positioned differently about 15 minutes later in the same session, but without background lights. Sorry they're so large - no time to resize.
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