Nice menu bar and overall it looks fine but just that I think that you should focus on a maximum of just 2 or 3 colors for your web design. I personally feel that the color on the both sidebars don't blend well with the gradient blue...
Too much like a blog, not enough like a hosting site. The header is text, which takes away from its potential. Color conflicts take away from the over all appearance. Like KidTechGuru said above. I'd change it so you say with your 2-3 main colors of blue-gray and black. You should have a contact form. The hosting page colors add even more conflict to the overall theme. You need more graphics, less blog feel, less colors... etc etc etc
I'd make the orange plan headers links (such as "$15 a YEAR Web Hosting") to more information about the plans. My first instinct was to click on them. On the "Hosting" tab, I'd lessen the gap between the page title and your plan matrix. My last suggestion may or may not be appropriate for your case. On your "Contact Us" tab, you only have a contact form. If I were considering purchasing your services, I'd want to see a list of contact email addresses for various needs (sales, support, billing, etc). Also, I'd want to see a phone number I could call for help if necessary. You can get decent (and cheap) virtual PBX service from onebox.com to help with side of things. I've used them in the past and was very happy with their service and support. Anyhow, good luck with your sales!
That's the key, it seems like geek work, but you MUST check and tweak your sites all the time, if you have a lot of them, cycle through so you have a few days between work on any one site, so you get some distance, like a writer working on a novel would, you can get a better prospective. This is coming from one who deals with OCD everyday! (oof!) http://internationalfilmboard.net
I like it! Looks more like a blog then a hosting company website but aesthetically its still pleasing to the eye.
It's quite busy maybe think of the main thing you want customers to focus on and ajust accordingly. It's quite straight laced at the moment, basic looking, this can work in your favour for a no nonsense look, but if you want to satnd out from the crowd you might want to think about a more unique look. Maybe a more exciting logo or a cool company mascot are the obvious things you could go for.
Lets put it this way . I have seen a whole heap of hosting companies with the same or worse. One of the best host I ever had ran their operation through Vbulletin software. Its the service that counts.