How do I evaluate website construction, content, design and usability?
Where are the good resources, tools and templates for making a site
evaluation?

http://www.cyberbee.com/guides.html

Best way is to validate all web pages with http://www.w3c.org.

They have many validators that will allow you to check cross-browser
html. Here is the direct link to the validators:
http://w3c.org/QA/Tools/#validators

This should be all you need to get your web site streamlined and
working correctly with all of today's browsers. If you program your
website with Dreamweaver it has it's own build in Markup Validator.

Hope this helps, Good Luck - 
Chris