We are happy to share MODx templates for FREE (code + MODx tags). Since you might need to change anything and still have it any browser compatiable let us know which TPL you like and want to use for your web site
http://modxd.com/
http://www.demo.amdbuilder.net/
http://www.tattoocms.it/
http://ziworks.com/modx-templates.html
http://modxcms.com/extras/search.html?query=template
http://modxcms.com/forums/index.php/topic,7679.0.html
Also, there are lots of CSS templates that can be converted into MODx with our support. Choose template you like from the following web site (s) and then let us know what you need to be changed / added / extra developed or just inegrated to your web site:
http://freecsstemplates.com/
http://www.freecsstemplates.org/
http://www.free-css.com/