Text Mining and Workflow

I just want to say how much I appreciate what you are doing with the R podcast.

I have recently learned about R through a coursera course, and I think it is amazing and one of the best, most amazing things about it is how great the community is about sharing knowledge.

I just listened to your podcast on workflow and I'm eager to try out the project template.

Two areas in particular I'm eager to learn more about

1) Text mining. I'm working on a project where I have about 30,000 customer emails, and I'm trying to use R to answer questions like: what topics are customers emailing about. I've started using the topicmodels package but I know there is a lot for me to learn about how to do this right

2) How to scope out and plan an R project. I know your great podcast on workflow is a great starting point, but, as a somewhat newbie programmer and definitely R newbie, I would love to hear some tips on how to scope out a project and not get bogged down.

Thanks again for the great service you are providing to the R community.

Adam