Need suggestions choosing a new card

I currently have an older edit suite running a Decklink SP card. I am upgrading to a new edit suite and need some suggestions on a new Decklink card. Currently I shoot on a Sony PD-170 producing 30 second TV commercials and the occasional 5 to 10 minute marketing video. I have to drop down to BetaSP on a UVW1800 for distribution to the network stations in 2 different markets. I'm going to upgrade to a Canon XL-H1s but I'll still need to drop down to SD to my BetaSP for distribution until the local stations make their upgrades. I'd also like the ability to move my current footage over to my new edit suite for various ongoing projects. My question is do I need to spend a ton of money on an HD Extreme or can I get away with just a Studio or even an Intensity Pro? Part of my problem is that no one at any of the TV stations can tell me what or how they will take future content, and I still need to output to BetaSP for the meantime. Oh and I'm editing with CS4 if it matters...