Check your main product navigation menu along the left hand side - the category links are a conglomarated mix of capitalized and lower case (ex> bit, blade, Power Tools, Grinding & Buffing) make this consistent to present more professionalism.
On the home page, below the picture of the circular saw, it says: "picture here" followed by a few lines of white space and then "more info here...." and neither are a link or describe the picture.
At the bottom of the left hand navigation is a section called "More Information" that has three links: Page2, page3, page4 and each one merely has placeholder text and is not an actual page - so if you have no content for these pages, remove them, otherwise people view the site as incomplete and no one is going to buy from an unfinished web site - too insecure.
I tried to add a product to the shopping cart, completely missed that there were options for the product, and recieved this message:
Please correct the following:
On the Option for: Item#
You picked an Invalid Selection: Select Diameter
What is Item# ? Should that be a product number or option/size number there?
the conditions of use page still has the placeholder text, as does the privacy notice, and discount coupon pages that I seen.
Really, I feel the two rows of category links across the top of the page is overkill - you have your categories to the left, and you have breadcrumb navigation, why insist on placing the categories at the top, in light grey text that is hard to read? Try black text or some way to make it blend better or remove it.
You also have redundant search boxes, you have it uppper right hand corner, and about 1/4 to 1/3 way on the right hand column - nothing wrong with multiple search boxes, but they are rather close together to do much good.
Also, the Who's Online feature really workes better for social sites, rather than ecommerce sites in my opinion, I really don't want anyone knowing I am online buying someting, especially if I log in and it shows my username, or other information other than "guest" this is not a common feature I find in commerce related web sites.
$0 budget? Work on the
SEO aspects of your site - your keyword and description tags are identical - not a good idea, your overall textual content should and could be better for the products, as well as enabling
SEO friendly URLs if your cart software offers it - if it doesn't, I would look at using a different cart software.
Anyways, I think you have a good start, just needs refined to make it better appealing, more user friendly and to appear as a complete site.
Two tool sites I like are northerntool and harborfreight - though harbor frieghts is a mess compared to northern tools - maybe get some ideas from them?