phranque - 12:04 am on Sep 8, 2010 (gmt 0)

the use of images in headers was extensively geeked in this thread:
accessibility and <h1> header images:
http://www.webmasterworld.com/accessibility_usability/3844966.htm [webmasterworld.com]

the SE's will happily read the alt attribute value and use it for header tag content.