Having your very own domain and building your own website can be daunting, specially to someone new. Aside from thinking about the design, you would certainly want your site to be visited by the search engines, too. Being visible in such a short time would be the target. But again, if you're a newbie, this could cause headaches.
If your site gets indexed by search engines, that could mean that your site will be exposed to more searches and hence more exposure. More exposure could lead to more visitors, and ultimately more buyers/possible clients. More buyers would of course mean more revenues. Isn't that just great? Unfortunately that's not how it goes, if your site is new. You need to keep updating your site to attract more visitors, and learn more about SEO (Search Engine Optimization). But don't be scared by all that!
There is a website optimization firm that can help: ThinkBIGSites.com. It is a company that can help you with web development, business web design, and what's great is that it is also a website optimization firm. Let them help you with the specifics on how you will be able to get your site it's desired ranking for internet search engines. You'll be glad you did! ;)