I agree with other posters. I have four of the cashmere roll necks and they're great for every day. I'd also look at Cos. I have one of their cashmere jumpers from last year and it was about £10 more than the Uniqlo ones but is much more luxe. Their cashmere scarves are excellent. H&M have a cashmere range. I've not seen it so can't comment on quality but it's competitively priced.
I've got a grey cashmere v neck from Uniqlo and it's been great - very cosy, washes well. It doesn't have that expensive, dressy look like proper cashmere, but great as a non-bulky layer of cosiness! I sized up and got a M as the S was a bit short and clingy (I'm 5'5" and size 8, not busty.)