Digital Sermons

I would really like to archive my sermons on digital audio. It was suggested to me that I could get a digital recorder and voila!
Here's one Friar's recommendation for digitally recording.

http://www.bustedhalo.com/features/HowToPodcast.htm

Here's another guy who suggests the same equipment.
http://www.churchcommunicationspro.com/2006/12/05/digital-audio-recording-kit-for-sermon-podcasting/