Camtasia, Sony Vegas, Camtasia Recorder, Fraps, PhotoShop, After Effects, Cinema4D?
YOU WILL DEFINITELY WANT AN i7!
Cinema 4D, Vegas, AE, and PS will see huge increases with the i7!
I also have a feeling that BF3 is multithreaded, in task manager all 8 threads are being used when playing BF3.
I would use MSI Afterburner over FRAPS.