I can't tell you what colors you should use, you choose them. I believe it would be a good idea if you would use a black background with red text, but that's not a must, you're the expert.
These are the menu links: Home, Features, Pricing, Demo, Custom work, Support . I should be able to add in the future one or two links beside these ones.
I would suggest using icons and images and if you do that, please use this site: http://www.istockphoto.com
The first entry should be the home page, and I will ask you later to show me the features page and the page with the signup forms.
Despite the productÂ it sells, the site should have the business style, not the adult style.