Is the Processor the i5 2500k (the new sandybridge?) if so also nice
Your MOBO fits the sandybridge processors, so your fine there, and it can have upto 16GB of DDR3 RAM 1333 or 1066, seeing as you have 64bit OS, so again fine there, all the drives / monitor should be compatible.
Dont personally know the case - it looks ok, but check to see if it comes with fans etc, for airflow.
Only thing just to be wary of is to check your 500W PSU (Power Supply Unit) is going to be enough to support the rest of the system. It should just about be fine though.
Again double check things like monitors / cases to see what wires / connectors they come with.
BTW - you have 'CPU: Not required' in there, but your CPU is the i5 :P