Shane, I forget what it used to look like but it is quite good now. I will suggest a couple of items. One, is that there is a lot of wasted space on the left of text due to the items in the tabs which could be just as easily be placed along the top, parallel to text and this would allow for the use of larger text and more of the "canvas" to be utilized. Also, it is a good idea to repeat Home etc along the bottom of the site so that when folks scroll down, they don't have to scroll up to move to a new location.
Secondly, on the Available page it is a good idea to have just the knives that are truly available and not the sold one on that page. An archive page of sold knives is good with prices but indication of sold so that users of the site can have an idea about what a particular knife might cost if something similar was to be created.
