Lighting for PD170
 

I'm a newbie to prosumer videography and am using a PD170 for the first time.
I've been asked to do a video interview as part of someone's biography and was wondering if anyone can suggest some reasonably priced lighting equipment as well as lavalier microphones. I expect to be interviewing two people at the same time. I've been looking at the B & H site and am totally lost as to lighting choices. I was considering purchasing an Azden Pro single lavalier and hope that it would pick up two conversations but I'm sure that won't work. With the PD's ability to input two audio sources, how about the Azden and then the onboard shotgun mike to record both persons? Thanks for your input!

Tony Cipriano