It's been a while since I've seen an FM card that wasn't integrated into a TV tuner card. Same with external tuners. And EMI from the PC is always a problem with these products, so your best bet would be to use the line input on the PC, to record from the line output of a stereo, positioned to reduce the negative effect the PC has on the stereo.
If you have a windowed case, you might need to ditch it for something with better EMI protection.