As above I'm thinking of investing in a HD5770 graphics card anyway and thinking of another 8GB RAM upgrade so I run with 16GB.
I also am thinking to get a SATA II SSD for the recording drive of the BlackMagic like a Kingston SSD so I just can capture the content with good write speeds and then cut over too another HDD, is this a good idea?
So the main question is are my specs above good enough to run the BM Intensity Pro without any problems??
Now if you plan on recording alot of video, you will need to raid them, or get a large SSD. I have this exact card too, FYI. The BM Intensity Pro makes very larger HD files when recording in H.2xx format. You might need to invest in bigger and faster drives to make recording easier. I have read that a 30min clip in HD will be in the 700mb-1.2gb range. BM does not compress the video for recording. BM has a disk speed test program that comes with the card to see if you can handle it with your current setup.
FYI, I use mine for mainly streaming & clip recording. My PC has nearly the same specs as yours. I am however running a 530Ti though. On just streaming, I never get above 20% CPU usage on stock timings. I wouldn't worry about more ram, unless you are gonna be doing some HEAVY editing on this stuff.