After running without as much as a watch up to now, I invested in a Garmin Forerunner 305.
I have wanted a GPS unit for some time now, and finally took the plunge and bought one.
Apart from being a totally cool gadget, I now have the following information at my fingertips as totals and lap splits:
The unit is of course capable of far more than these basic functions, but to date, simply being able to log my weekly mileage has proved invaluable as a training and motivational tool.
You can upload information to your PC using the Garmin Training Center software provided, as well as directly to the GarminConnect website using the free browser plug-in.
The Garmin Connect site allows you to share your activities on the web, and from there you can share them on other websites (like on this blog — see the map at the bottom of this post), social networking sites (Facebook) and more. A friend recommended SportsTracks, which is freeware for your PC which has more features than the Garmin Training Center software.
My only real complaint about the unit is that it sometimes takes ages to lock onto the required satellites. With this in mind, try to remember to switch it on at least 10 minutes before you intend starting out — if I am driving to my starting point I usually switch it on and leave it against the window on the dashboard.