My sever (and most likely many servers) still run iConomy as their Economy plugin but they have not updated since 1.3. Because name changing and UUIDs will be the standard soon, I am going to need to get a new Economy plugin that has the same commands and features as iConomy (/money top, /money, ect). I will also need some kind of converter to convert accounts.mini to whatever the new Economy plugin uses. If anybody knows or can make a plugin or tool for both these things I would greatly appreciate it.
Your best bet is to go with EssentialsEco. As for converting there are two options: use the essentials converter: http://wiki.ess3.net/wiki/Essentials_Economy#Converting_to_Essentials_Economy use the vault converter: http://dev.bukkit.org/bukkit-plugins/vault/forum/40134-database-conversion/ Essentials uses slightly different commands (/baltop instead of /money top) however you can add command aliases in the commands.yml file for bukkit so that EssEco will understand both commands: More info here: http://wiki.bukkit.org/Commands.yml
If you don't want to then you can still go with any other plugin that Vault supports: http://dev.bukkit.org/bukkit-plugins/vault/ You will need to use the vault converter rather than the essentials one (duh) and just look for an economy plugin that has a /money top equivalent and setup a command alias.