I got a forerunner for Christmas and it's great. It's the 101 which doesn't connect to a computer (which I don't need) and doesn't have a built in rechargeable battery. I've bought AAA rechargeable batteries for it and they work fine. It was bought on ebay from the US. Bit dubious at first but cost lees than £65 including shipping and arrived in three days. Was charged Customs duty and clearance but the seller refunded these.