I have written an SNMP OID translator plugin for Vim.
By using this plugin, one can translate OIDs directly within Vim without exiting from the editor.
I find it useful for discovering the MIB files, and translating while reading them.
Note that you have to have Net-SNMP installed on your system.
You can see the detais and download the plugin from the following link:
Here is a screenshot of the plugin.