Google LOVES directories! I'll submit your site to OVER 150 directories (PR 1-6). They are reviewed by humans. So many take over a month to review links. I CAN'T assure each directory will accept your link. If you're not comfortable with that, please use auto-approve directories (and watch your site get penalized).
Big Bonus: For the first 100 customers I will submit the site absolutely free to 90+ targeted major Search Engine!