That MSI system has great specs for a great price but it's not a Mac running OS X.
I happen to really enjoy Macs and OS X for my work. Very stable and reliable. However, I've given up on Apple for movies and gaming. I sold my iMac 24 3.06 8800GS, and my uMBP 2.8 in anticipation of this update, hoping Apple would finally see the light and move just a bit toward function (vs form). No such luck.
The ASUS G73 ($1199 @ BB) in my sig handles all my mobile gaming and Blu-ray movie duties and this little used ($600) uMB handles my work. It has everything I could want but it is definitely not pretty, weighs 7.5 lbs and the battery life is under 2 hours (Ac Adapter is 150 watts).
Certainly not really Apple's style but I agree with everyone complaining that Apple could have moved more toward higher performance if they created a model 3mm thicker to accommodate more cooling and a 12.7mm optical drive.
I've given up and will just buy used systems as needed and stick with ugly overweight Windows laptops for all my gaming needs. Not the ideal solution but it certainly answers the the people posting "if you don't like what Apple is offering don't buy it". Instead of owning two or three new Macs I'll just keep a used workhorse around and vote with my $$$.
Since most people people would find this solution unacceptable, they will continue to buy Macs regardless of the specs and nothing will change. Such is life.
Cheers,