Nvidia recommends a 620w power supply for a GTX 690. That assumes a junk brand generic power supply. Any quality 600 watt model will be plenty.
You'll need a 750w, with 3 drives and a high end motherboard with a 3770k
A "high end" motherboard uses exactly 0 more power than a budget model. Hard drives use less than 10 watts each. SSDs use even less than mechanical drives.
just try newegg's power usage calculator.
Newegg's PSU calculator assumes you are going to buy a piece of crap like Powmax or Thermaltake or Raidmax.
Power supply requirements for systems per card.http://www.realhardtechx.com/index_archivos/Page362.htm
Here are some excellent models across various price ranges.http://www.newegg.com/Product/Productcompare.aspx?Submit=ENE&N=100007657%20600014022&IsNodeId=1&bop=And&CompareItemList=58%7C17%2D139%2D020%5E17%2D139%2D020%2DTS%2C17%2D194%2D094%5E17%2D194%2D094%2DTS%2C17%2D207%2D014%5E17%2D207%2D014%2DTS%2C17%2D139%2D012%5E17%2D139%2D012%2DTS%2C17%2D151%2D088%5E17%2D151%2D088%2DTS
If you don't go with any of those stick with Corsair, Seasonic, PC Power and Cooling, XFX, Silverstone, Enermax, OCZ and Antec for a quality model.