PSU Estimate Assistance Needed

Hello TSG!

Feel free to move thread if needed.

I have been working on a custom build, intended for some-what high end gaming. Nothing above 1080p and High/Ultra settings for most of the games I plan on running; mostly DX11 is the plan.

I have always been paranoid about PSU wattage and under powering my custom builds so in the past, I usually shot high on the PSU wattage, 12V+ rails etc...

But this time, since it's going to be a bit more spendy, I would like a second or tenth opinion!

Here is the list of the hardware:

Motherboard: MSI Z77A-GD65 Gaming LGA 1155 Intel Z77 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard
CPU: Intel Core i5-3570K Ivy Bridge 3.4GHz (3.8GHz Turbo) LGA 1155 77W Quad-Core Desktop Processor
SSD: SAMSUNG 840 Series MZ-7TD120BW 2.5" 120GB SATA III Internal Solid State Drive (SSD)
RAM: G.SKILL Sniper Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1866 (PC3 14900) Desktop Memory Model
HDD: Seagate Barracuda ST31000524AS 1TB 7200 RPM 32MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
Optical: ASUS DRW-24B1ST/BLK/B/AS Black SATA 24X DVD Burner - Bulk - OEM
Video Card: EVGA 02G-P4-3658-KR GeForce GTX 650 Ti BOOST SuperClocked 2GB 192-bit GDDR5

And the case so you have an idea of where the PSU is mounted and the space available.

Case: COOLER MASTER HAF 932 Advanced RC-932-KKN5-GP Steel ATX Full Tower Computer Case


Thanks again TSG!