Lightning DmxControl is a simple dmxcontroller for Mac OSX with 24 channels and 12 presets. It can output DMX through an Enttec Open DMX USB Interface (about 55 euro) or the Enttec USB DMX PRO. Further, it is remotely controllable by any Midi Controller.
You can create presets by rightclicking a preset fader and choose 'Channels to Preset' from the context menu.
You can also use a MIDI remote to control the faders. To do so, rightclick a fader and choose 'Midi Learn' from the contextmenu. Move a fader on the Midi Remote and it will be coupled, as simple as that!
In case of problems, look at the FAQ page.