For all the N00bs:
The total power of your system doesnt mean it will work.
A total of 80W can and can ,not work, on a 90W power supply.
Check how much you will need on each rail, because if you get an opus 90W and you will be drawing 80W of power but 4A on the 12V it's !!TOAST!!
I'll spout simplistic opinions for hours on end.
Ridicule anyone who disagrees with me,
and generally foster divisiveness,
cynicism and lower level of public dialog!