I also have to echo thanks to STG for pointing out Debbie Kennett's UTube presentation. I was totally confused by DNA and genetic genealogy, but her clear explanation really cleared things up for me. Now I'm excited to try it! However, it does seem like a huge outlay for a rather uncertain return. Anyway, I'm enjoying this week a lot more than the previous ones.
Romilly - Yes, they did say that Family Tree DNA had the most UK-based members so far.