I was about to say that just attach your K-3 to some Limiteds, but you have figured that already out. I presume that you havu looked throug K-3 samples thread already if not, you might do that from last page and backwards from there.
great thing for me is actually just using it. I tend to shoot RAW. Great lenses really helps with quality. And you can use it even dark enviroments, like really. That alone is WoW. For me. Dynamic range is great too. And for action, nice FPS is great. Make sure you have AF Set for that thou.
Enjoy, I do enjoy mine. Great for traveling also..