You left out one crucial detail. Some have nice digital transport methods which are preferred over harder analog connections.
I'm trying to find the best solution to capture video from my DVR (RCA connection only) to my computer and then be able to play videos from my pc on my television (RCA connection only). I will replace anything on my computer now to accomplish this now except for my cpu/motherboard, that will be later. Cards need to fit a PCI (not express), or AGP slot.
Ideally I would like to be able to import an RCA video signal and export two VGA (or DVI) monitor signals and an RCA signal to my TV or DVR. I don't have a use for any other type of connection right now.
I am not too worried about software yet since my only concern now is storage and simple video editing.