1. What is your budget?
You can easily get 2 mini dv cams that can go to manual settings. Depending on your focus issues, you can go Consumer or Prosumer (Canon GL series, for example)
EBAY can be your friend. I picked up a Videonices MX-1 Switcher for under $500.
2. What type of audio inputs? RCA or XLR? Have you thought of getting a sound mixer for your audio?
Generally, set your budget and list your needs. Videomaker has in the past run articles on purchasing equipment based on different needs and budgets.
Good luck!
