From my experience, AlienBees strobes are pretty much one of the professional industry standards these days. I'd also say go for strobes, obviously especially if it's strictly for photography. I'm sure they sell AlienBees kits, but from what I can tell, you should be able to put something together within your budget.
Keep in mind, if you want to do wireless, you'll need a wireless slave for your camera if it doesn't already support wireless. Otherwise you're going to have to wire the camera to the flash source. You may be aware of this already, but just thought I'd remind.
A lower budget and more portable option (no need for power supply) is a multiple speedlight wireless kit. I'm not personally aware of any hardcore/professional flashes that don't require a power pack or power supply/source that aren't speedlight, and personally wouldn't bother, but I'm sure it's out there.
Sorry I couldn't give more than a(n extremely) trusted brand, I'm just getting into higher-level lighting myself. But that's certainly a place to start. Canon and Nikon make good speedlight flashes. Their higher ends are fairly professional-industry-standard, especially in the photojournalism field, but also in field portraiture.
Hope that helped, I'd be more specific if I could, but I haven't sprung for a strobe kit yet myself. If you need more help and can't find it here, FredMiranda has a great Lighting/Studio forum section: http://www.fredmiranda.com/