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Would we do anything other than go easy on you? I think the idea is that we're here to help... not slag eachother off!
I have to agree with you with regards to the green being hard on your eyes. I think the main reason for this is that it's presented against a black background. Personally, I'm not a great fan of dark backgrounds, and think that the green (used perhaps slightly more moderately) would work better against a lighter background.
If you tone down the amount of green used, it will also allow you to use a few more colours, which would help brighten the site up a bit. I can see what you're trying to do with the theme, green being a military colour and all, but I think maybe you could do something around the red whites and blues from the flags of Canada and the US?
That said, I think you've done a very good job on putting together a first site which is consistent in design and easitly navigated. My only major criticism would be the speed of the site - I don't know if I just caught it at a bad time, but it seemed to take forever to generate a page.