This quality case is for sale for well over £100 on other sites and other sellers on Amazon but it's just £19.99 with free delivery from Bentham Ltd who are selling on Amazon, Play.com, and eBay.
Impala Overnight Business Case 1200D Polyester
W370 x D270 x H470mm
Black and Grey
I've ordered a couple for myself, can't go wrong at this price.