Please don't take offense.

There a few things on your site that really annoy me.
I'm sure you're quite proud of your family crest, and there's no reason not to display it... perhaps on either side of your header. Having it tiled all the way down both sides of every page is just ugly. Some would even say it's conceited.
About Me is underlined... why? Usually this denotes a link to a dedicated page. Don't confuzzle the surfers. Also, multiple exclamation points, or overusing them in general, looks amatuerish and cheesy. Same for MESSAGES IN ALL CAPS, like your wait-list notice. Think of a used car ad... "EVERYTHING'S on SALE!!! WE MUST BE CRAZY!!!" Blech...
Keep in mind that all those little animations throughout the site will make it load slower for most viewers. Personally, I'm not a big fan of these either, just because they look like generic clip-art. You're showcasing YOUR creativity and skills... why use generic art? Especially when it has nothing to do with the knives themselves.
DW has a good point about dark backgrounds... the thing to remember here is contrast. The white on dark blue looks fine, easy to read... the royal blue on dark blue isn't so good. Use yellow, like where it says you do sell billets. The green text on other parts shopws up well, too. For cryin out loud, don't use purple text on a black background, or yellow on white! The font and size you're using is good, nice and clear.
Video page: The first 3, and the last one all open the same heat-treat vid sample in Mozilla Firefox. Some don't open at all. Oops! In IE more of them open but the cable damascus one opens and starts two players simultaneously. Until this is fixed, I would only publish the heat-treat, grinding, and forging a clip-point vid samples, with a note that more are on the way. Better to give 3 nice samples and promise more, than to waste time with dead/incorrect links. Maybe JTknives can tell you why some of the samples don't open right in Mozilla ?
The available, gallery and shop pages all look pretty good, although not all the pictures link to a larger version. That's not a real big deal, it looks like you put up big pics of the ones that show closer detail, etc.
Everything works fine on your links page, but I question why the last one is there... when shopping for a knife, why would I want to be linked to an airsoft search engine?
The only other suggestions I have would be to put the buttons on the homepage in different order... such as available > gallery > videos > shop > about me > whips.
I'd put whips at the end because it's totally removed from everything else on the site.
Other little things have already been mentioned above.
Hope this doesn't sound too negative, but you asked

I know from experience it's a big pain to check every link, grammar and spelling etc... but once you have it down it will be a lot better, and will look more professional. These days anyone with a library card can start a website; avoid the common cheesy mistakes and yours will stand out.