As an update, I tested it out and it does indeed perform at the rated speed - 2000 Mhz at 8-9-8-24, and the X.M.B. actually worked on my motherboard without a hitch, something that seriously surprised me (in the past, features like EPP RAM etc. always ended up not working right for me, causing BSOD's etc., but this one just worked right off the bat). Also I was worried about the cooler not working on the MSI Big Bang Xpower since the RAM slots didn't have latches on both sides but it ended up working fine.
The fan with this kit is a little bit on the loud side though; BIOS showed it as being close to 3800 RPM, so the little fan on that sucker drowned out the rest of my case haha. 😀 I set the speed to 50% fan speed which definitely cut down on the noise factor, so all is well in that regard. So far very happy with this kit.