If you're going for the P30sk, I recommend going with the LEM model. Tritium sights, 3 mags, bobbed hammer, no safeties, and a very sweet trigger. It is my daily carry. It eats everything, and even Buffalo bore +p doesn't hurt you or the gun.
If you laser/light everything like I do, Concealment Solutions makes custom holsters for your laser/pistol combos for righties and lefties. A mouse gun it is not, so don't cheap out on the belt, and it will be one of the more comfortable companions you can carry.
Yep, look at the LEM version. BUT, I was also shopping for the P30SK LEM version when I bumped into the Walther PPQ, which is very similar. They both have a very similar feel, and ergonomics to them. But the new PPQ M2 version got rid of the mag release paddles in favor of a normal button release. So the PPQ won out. I've shot the PPQ a few times now and it's an amazing pistol.
Take a look at both side by side. DSI has them both next to each other... good luck.