Your CPU alone will need about 200W on full load. Since you are using a very low power GFX card "the card you mentioned only draws 35W", then the Zalman PSU will be enough.
HDDs, SSDs & RAMs draw very little power.
My guess you've owned that PSU for some time now; with time & heat all PSU degrade their performance. Still it's enough for the rig you mentioned.
With all do respect to Intel,
I won't go for an Intel MB, they are so entry level, even for their extreme line "e.g. x79". Personally I'm a Gigabyte fanboy but if you like Asus go for it. There are plenty of boards out their that will crush the Intel's DX79xx