Oooh my dh is snowboard mad. I do a bit myself when I'm not pregnant lol.
How much are wanting to spend?
Last year I bought dh this . It runs out in Jan but he loved it. You get lots of freebies too with each one.
This year I got him this I know he'll love it because he is a big kid
I've been looking at these They will be so useful especially if he's on the slopes alot. Basically you can scan in your lift pass and things like that so when you go up the slopes all he'll need to do is flash his wrist a la James Bond, rather than faff about in his jacket getting out a bit of paper. It works on about 450 slopes in the world and if you go to the Swatch website you can look up where he lives to see if its there. Even if it isnt, its a great pressie for when he goes away because you can also scan in your hotel key!!!
I got BIL one of these We've all had them. They're quite useful. Only cheap but a good little stocking filler.
You could also get him some tools for his board like a new lock, some wax etc.
If you want to get him clothes. The brands to look out for are Burton, Volcom and Bonfire.
Check out these sites too...
Ellis Brigham
Noahs Ark
Sick and Wrong
Slide
Subvert
I'll think of some more. I'll get back to you.