At our facility we have two FCP systems with Decklink HDPro cards and Miranda SDI-analog converters. Of course our routers and all other systems (smoke, flame, eQ, iQ etc) are SDI with embedded audio. And our broadcast monitors are SDI. This has worked for us for the past 2 years. At the time we set these up (end 04) there were no Multibridges.
Recently when we added two more setups using existing Decklink HDPro cards, we evaluated various converters as well as our good experience with Miranda. Eventually we opted for two Multibridge Extreme. These work as SDI audio embedders, give us the option of connecting a analog component monitor, use a SP deck for ingest directly and are generally stable. One unit was DOA but the dealer replaced it instantly.
I think you too will find the Multibridge Extreme the most cost-effective solution. And if you were to upgrade to a new PCIe Mac, you can use the MBExt directly with a small PCIe card, as we too would have done had we had acces to a PCI-X card for the MBExt.
Neil
FCP Editor, Mumbai, India.
Completely PAL.