Support ticketing system
jaddison: The only major one that I've had passing experience with is Kayako SupportSuite (http://www.kayako.com/solutions/supportsuite/).  I don't know how it stacks up against competitive products.I believe it is PHP-based as well, if that matters.The price is pretty good though - ~$500 for an 'owned' license (http://www.kayako.com/purchasing/pricing.php).All that said, I'm interested to see what other options people suggest.