The only Dual PCI tuner I can recall are the
Nova-T500's.
Also, re: your comment about remote controls, you're not going to want to use the ones that come with the cards (or USB tuners). They're, in most cases, designed for use with the software that comes with the tuner as opposed to media centre.
In some cases they can provide basic control of media centre, but you'll eventually want to buy a proper remote.