Problems upgrading to HD

I am having a little problem at my church. We currently have a 8×10 projector screen, we also have a canon gl2 with it.Let me breack it down again, a canon gl2 (sd), a datavideo switcher (sd), a nec projector, and a 8×10 screen. My pastor wants to buy a new camcorder,what camera should i get that will work with this system? we can upgrade to hd in the future but he wants a new camcorder now.What should i do?