Pincup, if you have any specific questions about compu show or even MY DMX please let me know. For what you are trying to do ,Yes I would recommend Compu Show. There are a few different interfaces of Compu show you can buy. Each with their own specific supported advanced feature. For example triggering a bunch of scenes to a audio track or video track in a external time line based software is not supported on the first two Compu show interfaces. However I can say that compu show has a trigger by audio or BPM function that works for if the computer it is running on has sound playing on it's sound card. I can g into more detail, just let me know.
Sincerely,