Have a search of both the project development and development forums its discussed often in there.
They reckon bitcoind doesnt scale to well with large wallets, but maybe look at getting watch addresses to work with it (there is a pull request for it) and using -walletnotify?
Or have a look at and speak to the Armory developer or pywallet developer.
Thanks for that - will do.
Unless you are using a patched bitcoind, don't bother because it is not going to scale well.
Thanks for the heads up - many congrats on the Inputs.io launch, BTW.
Incase anyone else is looking into doing this kind of thing, there's a pull request in play -
https://github.com/bitcoin/bitcoin/pull/2121.