I dyed my hair various colours throughout my twenties, stopping only while I was pregnant and breast-feeding. I started having my hair highlighted in my thirties, and it's only since I stopped that a year ago that I've noticed I'm developing crops of grey hairs on my temples.
I'm not sure what to do about it; I quite like the idea of silver streaked hair, and I've had a white streak in my hair since the rest of it darkened as a child. I'm not bothered about looking young particularly, and I really don't like the look of obvious grey roots with the rest of the hair dyed dark (I know I'm too scatterbrained to have it dyed regularly enough to avoid this). If my hair was lighter, it'd be less obvious, but it's quite a dark chestnut shade, so the silver strands do stick out. I'm considering using a semi-permanent or a colour conditioner to tone them in a little, rather than a permanent dye.
Are you getting any greys, and what are you doing about them, if anything?