CyanogenMod is really easy to install, however if you have no knowledge of modding phones, there is not much point in potentially having a very expensive paperweight just to play PRO.
there is however another way to do it, without rooting. I havent tried it however i have had some users say that this works.
Android can install custom launchers. I recommend going onto the play store and installing a launcher such as Apex or Nova (or sail the seven seas and get the Pro versions for free ;)). then, go into apps, and force close and disable Touchwiz. <---- DO THAT LAST.
then, make your new launcher the default one.
I personally recommend nova launcher, as I use that one and have no problems with PRO.