If you use the below promo code on the slingbox website, they will give you $50 off a Slingbox 500 or $30 off the 350. This makes it much cheaper than anywhere else, including Amazon.

The promo code that will get you this discount is: yqfopqqmh

For anybody who doesn't know what Slingbox is, it's a media streamer that allows you to view and control a media device, such as your satellite box, from anywhere in the world, over the internet. This is really useful when you go on holiday as you can still get full access to any TV subscription you have at home, with an onscreen remote you can use to change channel or view recorded programs as you would if you were in your living room. They're really good, I've had one for ages.

The above promo code needs to be used on their website. With this dicount, the Slingbox 350 works out at £149.99 and the 500 works out at $249.99 (instead of the nearly $285 that Amazon are charging for the same unit).