A MIB-browser for Mac OS X. I think its the only one. I tried to find one but couldn't find one. When finished it will be able to walk through values from the mib tree you select. It reads the mib that you have in your /usr/share/snmp/mibs, if you put more mibs there it will read that one to. It supports reading from diffrent folders but i haven't done a preference pane yet. Please comment if it doesnt work!
Mac OS X 10.2 or later
*Previously available here