For people looking to create a multipool (which, for the record, I do not agree with) here's what Faircoin is doing:
http://fair-coin.info/multipoolThey seem to be working with WafflePool to create a multipool system and then buying FC with the profits, distributing the profits to the faircoin addresses. Not sure what needs to be done for HVC to get that sort of deal. Might need to work something out with the Wafflepool admins.
Actually, looks like they're just using a BTC wallet database sorta deal. Pretty simple to program actually. Worth nothing though, if the network drops too low, then someone with a hashrate like GPools could single handedly launch a 51% attack... So I recommend any multipool efforts change the method a bit so we redirect at least 25-50% of hashrate to HVC.