These are my choice cut to enhance your website. Hope this will ignite your website.

• All in One SEO Pack – http://wordpress.org/extend/plugins/all-in-one-seo-pack/
• Google XML Sitemaps – http://wordpress.org/extend/plugins/google-sitemap-generator/
• Google News Sitemap – http://wordpress.org/extend/plugins/google-news-sitemap-generator/
• Secure and Accessible PHP Contact Form – http://green-beast.com/blog/?page_id=136
• Subscribe To Comments – http://wordpress.org/extend/plugins/subscribe-to-comments/
• WP Super Cache – http://wordpress.org/extend/plugins/wp-super-cache/
• Google Analytics and Feedburner Reports plugin for WordPress – http://tantannoodles.com/toolkit/wordpress-reports/
• WordPress Database Backup – http://ilfilosofo.com/blog/wp-db-backup/
• SI CAPTCHA Anti-Spam – http://wordpress.org/extend/plugins/si-captcha-for-wordpress/
• Add to Any: Share/Bookmark/Email Button – http://wordpress.org/extend/plugins/add-to-any/
• Disqus comment system – http://wordpress.org/extend/plugins/disqus-comment-system/ (has gravatar support- that’s why I took out easy gravatars)
• Twitter Tools- complete Twitter integration – http://wordpress.org/extend/plugins/twitter-tools/
• WPtouch iPhone Theme – transforms site mobile friendly for many phones – http://wordpress.org/extend/plugins/wptouch/
• Bad Behavior – extensive spam protection – http://wordpress.org/extend/plugins/bad-behavior/
• Tweetmeme – simple retweet button/count – http://wordpress.org/extend/plugins/tweetmeme/