Wide angle lens for D300

[NickHopkins]

Just to throw in my two-penneth...I've got the sigma 10-20mm f4-5.6 HSM and love it to bits, it's an utterly addictive lens.....

There's a mint second hand copy here if you want one a bit cheaper.

http://www.acecameras.co.uk/asp/web/.../1/product.asp

[pgenon]

I use a Tokina 11-16 f/2.8 and have been very happy with the quality, on a D300.

Don't be put off by the narrow range, there is still a surprising amount of variation of viewing angle between 11 and 16.