You can get even better graphics out of Hopper.app, which is a great little program. Hopper will even do a decent first-pass conversion from assembly back to C.
We use both, but when I can get away with using Hopper, I try to, because the UI is nicer, the program feels faster, and the Python extension interface is built right in.
Disassemblers are a good target for open source development. They're commercially valuable only for a very small subset of users, and the market leader is terribly mispriced relative to the value it provides, which drags the whole commercial market for them down.
Not only are they terribly mis-priced, it is very difficult for people that are not in the security industry but have an interest in reverse engineering to get access to the software because the author won't sell to them.
