What more can I say? I pretty much agree with Donna's and Pam's comments. I do have to say that I like the design as well
As a developer, I know using features like cascading nav, snap shop, or even mini cart help with conversions and they're visually customizable to fit your store's design. Customers love using new and innovative web tools. These features get them to the product faster, and (the best part!) to the cart/checkout quickly.
From a consumer's perspective, my suggestion is to change your best sellers and featured items with some "cool" or popular items, or even seasonal items (ie: spring cleaning, summer toys and bedding). If you have items that are sought after in stores such as Toys R Us or Wal-Mart that they do not carry, display those brands or items prominently as well.
Employees that work at stores like Toys R Us or JCPenney will suggest places to go if they don't carry something like children's furniture or storage. I know that was a popular question that I had to answer back in my retail days. Spread the word that you have these items and that may also help conversions. Word of mouth is a very useful marketing tool.
Hope this helps and good luck!