A bunch of links for template designers taken from silverstripe.org
http://kuler.adobe.com – Kuler is a great color scheming tool
http://blog.html.it/layoutgala/ – 40 super cool CSS layouts for you to use
http://designmeltdown.com – Great gallery of websites. Browse through and get inspired.
http://validator.w3.org/ – Your template must pass ‘or get near’ validation.
http://famfamfam.com/lab/icons/ – free, beautiful icons.
http://cssremix.com – Another CSS site gallery for inspiration.
http://www.maxdesign.com.au/presentation/process/ – a good process for creating a design