I think you have gotten very good input from everyone and I have to agree with them %100. cw1865 also points out many things that caught my eye right off the bat and viewing it with Firefox made some of them really stand out.
I understand the cost of having a site made for you and with that in mind I would have to point you maybe in a different direction or at least give you something to think about. If you did not want to drop the cash then I would recommend just putting together a 'Cart Site'. There are many out there that are inexpensive and will save you time. The one I personally like is
squirrel cart for it is easy to set up and you can also integrate it into a existing site but there are many other good ones out there that do not require very much programming knowledge. If you do not want to go that way and wish to create your own then may I suggest you take a look at
this site to get some Idea of what a simple layout and some css can do. Although they use asp to create the site, their isn't anything there that you could not do with straight html and css if you had to then comeback and add a database later. I'm sure you have seen that site before since you sell their products. I just wanted to point out that a updated design does not have to be a real programming nightmare. keeping it simple and fresh also works. I would add a breadcrumb trail and a site search though to that site.....
Just food for thought.
FYI
Google adheres to Sitemap Protocol 0.9 as dictated by sitemaps.org
Your sitemap does not meet this as it does not have
<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
You also have the domain of
http://maco1.com this should be dallasnovelty.com and the <changefreq>hourly</changefreq> I do not think you change your products hourly but I maybe wrong.