as for the 1-on-1 web interviews, it sounds like you just need basic lighting and framing, nothing tricky or especially artistic about your setup. so, yes, just find someone with a lighting kit (2 or 3 lights should do) and a basic DV camera. you can use HD if you want to, but it's not necessary for the web.
by the way, hiring film students to do work for you on a deferred pay basis is a difficult proposition. film students are not known for being extremely reliable, and if they are not being paid, you never know what you're going to get. if i were you, i wouldn't even promise deferred pay – i would just sell the project on its own merits, and hope that whoever wants to do it just needs the experience. good luck.