Argos have the F45fd on a "less than half price" offer for £89.99 at the moment.
This is the Argos exclusive model with the same technical spec as the F40fd, just with a blue camera body instead of silver or grey.
The cheapest F40fd on pricerunner is £111.49 at the moment, so this offers a useful saving.
Sadly not available for home delivery, only to reserve online for store-pickup. Availability looked promising in my area when checked.
EDIT: Now only "half-price" at £99.99, so not so hot