The NetBeans Team has announced to support not just PHP 5.3 which was released earlier last week but also Symfony in the next release (6.8)!
Because I am not very pleased with the PHP support within Eclipse PDT, I am currently using VIM for PHP, and specially, Symfony development.
Since Pierre told me recently that the PHP support for NetBeans is getting better and better, I am really looking forward to the next NetBeans release.