I wrote a Mac OS X Kernel Extension to dump any process memory by PID. I decided to integrate it into a HexFiend Fork as the Viewer is in my opinion right now more or less the best what you can get on OS X ( sadly…. )
Supported will be 10.6 up to 10.9
Integration of the KEXT will be done in the next two weeks.
PS: Obviously it needs root right, so please don’t ask why it is not working with a normal user ( without sudo ) ;DDD