I've been using my Nars Bronzer in Laguna £25 for months now and it's really good. It gives a glow to the cheeks without being orange, the colour is a lovely bronze that reminds me of a colour Bridgette Bardot would have worn in St Tropez. It glides onto the skin beautifully, you can build it up and it stays all day.
My skin is a pale, yellow tone and Laguna would suit my colour up to an olive skin tone. There are two other colours in the range, 'Casino' which is a dark brown with gold shimmer and 'Irresistiblement' a golden terracotta. I haven't used either of these two but it looks like Casino would suit a darker skin tone and Irresistiblement a paler skin tone.
This is definitely my favourite powder bronzer at the moment and yes it is £25 but it lasts ages and is definitely worth the price.