I really enjoy my new Nikon D40 and as some of you might know I even like to provide all my photos on Flickr with tags, names, sometimes descriptions, and most of the time Geo Tags. But as I keep shooting more photos, keeping track of where I shot them is beginning to become difficult.

So I know that there are small bluetooth GPS devices that can keep track of your location and then later on match the photos with the proper GeoTags. There are many examples online about how to use these GPS devices and most of them are very broad, for me too broad.

Basically all I need is a GPS unit that keeps track of my location throughout a day. It needs to work with a Mac, and if possible the software better have some nice integration with Flickr. Anyone have any experience with this that could help me?