Check Please!

Hey Guys!
This is my very first build ever. Can you check/give recommendations before I buy? I’m well within the range of my budget of around $700. Right now, my concern is the quality and compatibility with the components of this build. (I based most of my decisions from the reviews off newegg, so hopefully I picked some good stuff.)
Approximate Purchase Date: By December

Budget Range: Around $700

System Usage: Watching Movies at 1080p, SC2

Preferred Website(s) for Parts: Newegg, Amazon, Frys

Country of Origin: US

Overclocking: Maybe, if I find myself needing it or have the time to do it

SLI or Crossfire: I would like to have the crossfire option available

Monitor Resolution: 1920x1080

CPU – AMD Phenom II X4 965 Black Edition Deneb 3.4GHz Socket AM3 125W Quad-Core Processor
MOBO - ASUS M4A88TD-V EVO/USB3 AM3 AMD 880G HDMI SATA 6Gb/s USB 3.0 ATX
VIDEO CARD - MSI R5770 Hawk Radeon HD 5770 1GB 128-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card
RAM – G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800)
PSU - CORSAIR CMPSU-650TX 650W ATX12V / EPS12V SLI Ready CrossFire Ready 80 PLUS

Case: Antec 300 (I like how it has good airflow)
HD: 500GB HD Samsung or WD not really important

Additional Comments:
I have a few questions also:
1.) MB – I was looking at the M4A78TD-V Evo as well and it’s about 20 dollars cheaper but it doesn’t have usb 3.0 as far as the major difference between the 78 and 88. Is it worth getting the 88?
2.) PSU – I believe this is well within the range of what I need. I plugged my specs into a PSU calculator and it estimated my minimal PSU needed would be around 500w. Is it ok to use a higher watt PSU right?

Thanks for all your help,
I’ve been learning a lot from reading these forums.