Editing Video

Dear Lazyweb, I now have slides from the symposium on Science 2.0 that ran as part of the Software Carpentry course last month. I also have video in .flv and .mov formats. I'd like to stitch the two together somehow, since the video only shows the speakers, not their slides. What's the least-effort way to do this? (Note: I have a small budget, but no experience in A/V editing, and no time to learn myself.) Thanks, Me