How is this gaming builds compatibility? (UK)

[huntrail]

I need to know if the parts in this build is compatible. I'm sure it is but it's for a friend so I wanted to double check. Also would SLI with another 550ti be possible in the future on that PSU?

CPU: AMD Phenom II X4 965 Black 3.4GHz Quad-Core Processor

CPU Cooler: Arctic Cooling Alpine 64 Pro CPU Cooler

Motherboard: Gigabyte GA-990XA-UD3 ATX AM3+ Motherboard

Memory: Corsair Vengeance 8GB (1 x 8GB) DDR3-1600 Memory

Storage: Western Digital Caviar Blue 500GB 3.5" 7200RPM Internal Hard Drive

Video Card: EVGA GeForce GTX 550 Ti 1GB Video Card

Case: NZXT Phantom 410 Midi Tower Chassis - Black

Power Supply: OCZ OCZ600MXSP-UK ModXStream Pro 600W ATX Power Supply

Optical Drive: Sony AD-7280S-0B 24x Internal SATA DVD Multi Writer Black

Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit)

Wifi Card: TP Link TL-WN881ND 300Mbps Wireless N PCI Express Adapter

 

[huntrail]

Would the above parts work with a Zalman Z11 Midi Tower Case also?