Since this is an estimation tool, I would always choose the higher power consuming answer just in case. So, I would use...
High-end Desktop for the motherboard
7200rpm is regular sata, 10,000rpm is high rpm
those fans are regular
It's always good to go a little higher than the PSU calculator suggest anyways, and that covers little things like this too. =) For example, if it says 523W then go with a 550W or 600W. I went with a 850W when it recommended 550W or so (much more than enough) and I'm glad because I am upgrading to a second card and dont have to worry! It's all up to you!