For the sata, the installation only requires a floppy if you are using it as ur sole drive, and want to install windows on it from DOS.
Everything else is pretty easy, but ur motherboard manufacturer provided the disk for the SATA. If you have misplaced it already, they have it on their site with instructions.
There is a minor speed increase, and since SATA is barely more expensive than IDE, I would do it.
nF3/ nF4 - They are both good, nF4 is for SLI boards I'm pretty sure, so if you're looking into it, you're looking at a PCI-E graphics card.
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