Cable (100m reel) = £12.87 (link)
Connectors (100) = £5.86 (link)
Crimping tool = £6.45 (link)

Make your own, much cheaper! Shout if you need any info on how to actually do it......oh, and since you're in Reading, you'll need to add delivery to those prices. But, if you can find a similar computer-shop down there, give me a shout and I'll give you a step-by-step on making/crimping a cable from a reel...