Title:
A good title has between 10 and 70 characters (including spaces), and contains your primary keywords and phrases. Be sure that each page has a unique title.
http://blog.magnoliasoft.net/2009/01/title-tag-best-practices-10-step-guide.html
Meta Descriptions:
The Meta Description Tag doesn’t affect your page's ranking in the search engines (for the most part), but it is still important for your SEO. Google may choose to display meta descriptions in the search results, this will h...