..which case would you recommend in case i decide to get one? The Artisan and Artist one looks nice with a built in grip but i'm not sure if it might be bulky...
Cases, like bags, are very personal purchases.
Haven't really looked too closely at the cases for the X1/X2 yet, but I have an A&A half-case for the M4-2 which is very trim and have a Leicatime.com (Luigi) case for the M9 which is a hair less trim but very comfortable in the hand. Luigi's cases are superb quality but expensive.
I'm not particularly enamored of the A&A for the M9 as it has no option to protect the back/LCD—that's why I went for the Luigi case. I had him make the back flap completely removable so it doesn't get in my way when I'm in a shooting session and want to use the controls a lot, but I find it doesn't really matter much as I tend to use the camera without looking at the LCD or working the EV compensation most of the time.
The X1/X2 case is similar ... if I go for a Luigi, I'll leave the hinged back flap there and get it without the additional grip. Just the peanut bump is fine for me.
Leica's offering their own half case for the X2, don't know what that'll be like yet. And I see that Photo Village in NY has a Black Label Bag half case for it too, which is a virtual clone of the A&A but often with small nuance enhancements.
I'm sure there's a half dozen others available via Ebay ...