I am getting a laptop (Gigabyte u2442f) with two drives: a 250 GB SSD I'll use for the filesystem root, and a 750 GB HDD I'll use for home/.
For the HDD, I have a choice between 5400 RPM and 7200 RPM. Which should I choose?
The price difference is only ~$20, so that's not an issue for me. I'm mostly concerned with whether the 7200 is noticeably noisier or more power-hungry, since this laptop is not known for its battery life to begin with. If the speed win is negligible when there's already an SSD, then I would go for the 5400 if it's noticeably quieter or more efficient.
Finally, if I already have an SSD in the laptop, would it be pointless to get a "hybrid" HDD with on-board SSD cache? Or would that still make things speedier?