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Converting home video tape to digital?
I have some VHSs and vinyl records which I'd like to convert to DVDs and CDs, respectively. I have a couple of questions about how to hook the devices up to the computer.
I've seen some RCA-to-USB cables on the Internet like this one:

Will those work for connecting the VCR to the computer? And what program would I use to take that and save it as a video file?
Can I connect the phonograph directly to the Line In port in my PC or do I need some amplifier or something in the middle?
I'm using Windows 7 x64, if it matters.