I will be taking a trip to Vegas in a few weeks and wondered if I would save myself some £ on GND filters when I'm there. It's something I've had in mind to buy anyway, what do you think? I'm also not sure what make or densities to buy so any advice would be good. I'll have around £100 to spend. I'm using a D60 and 18-50 kit lens at the moment if that helps.