I'm a big fan of Rimmel 60 Seconds - I always forget that I've just painted my nails and smudge them and have to start again (several times) so quick-drying polishes are the best.
They have a HUGE range of colours, which are fabulous ogling material in any massive Boots!
This is bad news for my bank balance though, I own about 15 shades but my collection is nowhere near complete. *woooo excuse to buy more*
This one slipped under my radar at first, but caught my eye the other day when I was in a local pharmacy, I love its duskiness (and good names are always a bonus).