Which new lighting equipment to buy?

I spent part of the day looking for a new set of studio lighting. Needs to be portable bit also bright enough for most portrait and small scale commercial work. Cannot decide between Interfit, Bowen and elemental? Still, I am looking forward to getting the lights and doing some portraiture. Got some bookings, but want more. If anybody reads this and has any suggestions about the lighting I would be pleased to receive an email.