Let me add a plug for SmartStasis, since its disco combo abilities are relatively new. I disagree that a basic CCS is more straightforward than SmartStasis. SmartStasis needs no configuration, and what's more, you don't need to micromanage your CCS during play -- it will cast disco combos only if they are available and only if they are profitable (or help you get a goal item). To set it up:
1) download three scripts -- SmartStasis, First Things First, and ZLib. Links to all of these are in my sig.
2) enter this for your CCS: 1: consult SmartStasis.ash
Then, enjoy a comprehensive feature set. Features relevant to this thread: it will only stasis for meat/mana from your familiar if your familiar can actually give you meat/mana, for one. Second, it takes that into account (along with the meat/item drops of the monster you're facing) when deciding whether to cast Nirvana/Concentration. Third, if you enter a combat low on MP with a mana-restoring familiar, SS will stasis the monster until you get enough MP, then cast appropriate combos when you have enough MP.
If you're looking to automate disco combos for farming, in my fairly informed opinion SS is the clear winner.