I've recently got one of these: http://www.wiggle.co.uk/bryton-rider-50-gps-cycle-computer/
it seems pretty good at 1/2 the price of the equivalent Garmin. Not super easy to use, but really not hard at all.
@branwen started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
I've recently got one of these:
http://www.wiggle.co.uk/bryton-rider-50-gps-cycle-computer/
it seems pretty good at 1/2 the price of the equivalent Garmin. Not super easy to use, but really not hard at all.