My first website

Hello everyone. I just launched my first website about 48 hours ago, and I have several questions/concerns. But first I would like to thank everyone on this forum and the countless other sources I used to learn about SEO, affiliate marketing, and AdSense.

My first problem is that it's been 48 hours and the googlebot has not crawled my site (none of the search engines have) even though I submitted the site to them! I'm thinking this could be because I use absolute instead of relative links? Because when I do a scan at those SEO scanner sites, it tells me 0 internal links found!? But the links work just fine. Let me know what you think please.

Now that the site is live, I am preparing a marketing plan that will drive traffic to my site, including posting articles at sites like ezinearticles, a (small) PPC campaign with adwords, and asking all my friends to take a look at the site. I will also be searching for great backlinks by contacting certain websites/companies directly. Finally, I am a member of several computer-related forums, and will be making posts on those forums with a link to my website in my signature. But, don't I want to wait till the search engines at least acknowledge my existence before doing these things?

Last but not least, do I need to provide a NOSCRIPT for every script on my pages? I read that is a WCAG standard...

I appreciate any and all feedback. I understand it's my first website and I'm begging for criticism. I know the home page is terrible, I'll be doing a complete overhaul next week. My site is building-a-computer.com

Thanks!