This is a strange device, but sounds like fun. It's the Pyramat Sound Rocker from Firebox - they have it priced at £99.95. This is over £130 at all other online stores, so is a very good price. The one catch is that it is out of stock at the moment, but they are taking orders for it, as it is only on offer for this week (normal price £150).
Don't forget to go through quidco for a little cashback, and use one of the £5 vouchers from the voucher section here to cover the postage cost!
Details: Are you sitting comfortably? Good, because once you've read about the incredible Pyramat Sound Rocker you're going to be spending even more time sitting on your backside. That's because this state-of-the-art gaming seat lets you hear and feel the action from your video games, music and movies like never before.