Shahid introduced to me to this and I now have the itch. Garmin 205 is neat little toy that has lots of cool stuff that runners would like.
I particularly like GPS functionality and the ability to upload it to a Google Map plug-in (Please take a look at our last week run and you will better appreciate what I am talking about). It even has a cool animation feature that gives blow by blow account of the run and gives all kinds of statistics.
I am really really tempted to yield to my itch and get a Garmin 305. What say you?