Magento Contact form in Page
Go to your CMS> Manage Pages interface
Once there, input your HTML as you normally would on any other page
Once you are happy with HTML part, add this lines:
<!– CONTACT FORM –>
{{block type="core/template" name="contactForm" form_action="/contacts/index/post" template="contacts/form.phtml"}}
<!– END OF CONTACT FORM –>