I just got one of these on ebay for a tenner.
http://stores.shop.ebay.co.uk/DOLPHI...SE+SONIC+HEART
It's not a Garmen or anything, no pc software, but it's got a separate heart monitor, and it works.
I was only after a watch with big numbers so I could read the stopwatch when I was running.
The battery in the heart rate monitor was flat so I wOuld say it's old stock, or bankrupt stock, but I changed it and it worked fine. There are still loads left.