There's a problem with Mac + SWT, try taking jme-swt and swt-fake off your classpath. 
nixterrimus said:
Out of curiosity what are the ramifications of not having the library?
No SWT support (SWT GUI + jME Canvas in the same window. Eclipse recently released a proper library for cocoa.. I've been testing it with pretty good results, might stick it in the repository in the next few weeks..
nixterrimus said:
Thank you for your help, it's really appreciated.
Now do the greater deed and be the next person to pass on some knowledge ;)