Hasta La Motion!

Ok, I asked a question a while back on the forum on how to mix CG with live action footage. Since then, I’ve learned a lot, however still a bit fuzzy on a couple of things. Okay, say I’ve got a shot of the floor, and I want to get an animated monster in there. Say the cameras moving slightly, roatating round the monster. I know what is required to get it in there but the main thing I’m clueless about. Matchmoving. Would I need to put markers on the floor? I’m using Matchmover 2012. Or could I just put it in there, then motion track the monster.

Thanks.;)