I made a file that can be imported to Eclipse/ZendStudio/PDT to format code according to TYPO3 coding conventions. I must tell that PHP formatter is buggy and does not always follow its own rules. Nevertheless, you still can try this file. But make sure that you backed up your existing scheme.
Thew file can be imported through the "PHP", "Formatter" setting group in Eclipse preferences. Notice that file is compressed and must be decompressed before importing!

Komodo IDE is better in general but its debugger cannot work properly with symlinks. So I am back on Zend Studio now.