I have to agree with the login link being too small. Also, your options don't seem to be making much sense. If you are going to list Departments, then things like Customer Service should fall under Departments. Also, the less click throughs the customer has to do the better. You don't want them to have to go 5 clicks to get to their account page. I would say that if your IT guy is in charge of this and you don't have someone who focuses on eCommerce helping you out, then you should revisit your goal. An IT guy with little to no eCommerce experience is going to tread water at best and will get no where near getting you to the top. No offense to the IT guys out there, it's just that eCommerce is a tricky business. SEO rankings, meta tags, keywords, etc. Here's a link to a site that I get newsletters from and has some good articles to help you out. You can spend all the money in the world on a nice eCoomerce package, but it won't get you anywhere unless you know how to make it work for you.
http://www.practicalecommerce.com/