This deal has been on before, about 4 months ago, but is now back.
Pro Fitness Set of Vinyl Weights - 2 x 10kg = £14.99
But if you buy 3 sets, you get them for £24.97.
I know they are a bit thick, but stick them on a barbell bar and if you're a beginner like me you wont need any more for a while.
Now I just need a cheap home squat rack (and find some space to put it!!!)... still looking.