The excellent Sony HX5V camera:
10x optical zoom
Use £30 cashback form and purchase from participating stores (Comet is cheapest high street retailer I can find - have confirmed they participate). http://www.sony.co.uk/res/attachment/file/85/1237479025885.PDF
Use Comet collect in store to pick this up and get the necessary receipts in order to claim cashback.
Online price on comet showing as 278 or something, but instore is £219 - verified today.