Those FakeSMC plugins for temp/fan readouts have been in Multibeast for quite some time.
I've always liked MSI's build quality. It is a shame more boards aren't supported. I've seen MSI boards work better OOB than the popular Gigabyte's, and that's without a DSDT. Nevertheless, there are still little things that sometimes aren't ironed out simply because it's not a popular enough board. This is why most people just play it safe and go with what's confirmed fully working. Although "fully" working's definition often varies between people =P.
The 6870 works OOB yes, but you must enable graphics enabler in Cham/Chimera. This is to inject the framebuffer. Otherwise apps like DVD player and Steam crash.