Argh, stop trying to save 50 bucks and just buy from theretrofitsource.com
Seriously, these brands you're looking at will die in months, and often come with mismatched colours and flickering issues out the ass. It's not worth the relatively small amount of money you save. Morimoto is a quality brand and their stuff nowadays is almost on par with OEM. They're _the_ best aftermarket HID brand, period.
Now for sizes: H11 for fogs (I wouldn't bother, though. The entire point of fog lights is to help out in the fog. White/blue light is much worse than yellow light for penetrating fog...so yeah).
9012 for HIDs BUT 9006 is the more common size and it fits our cars just fine (that's the size of the HIDs I had installed!).
As for colour, you get the most lumens at 4300k. It's what most OEMs use (BMW, Mercedes, Mazda, etc). As you increase or decrease the colour (5000K+ or 3000K-), you lose lumens. And you lose them hard. If you look at a graph, the output just plummets. Any time you see some guy rocking 8000/10000K HIDs, feel free to laugh at them because they make less light than the lowest tier of low beam halogen bulbs, let alone our HIR2s (which is actually the highest tier for halogens).
Now for wattage...if you get 55w, prepare to inhale pure charcoal through your vents from that point on, because 55w turns our reflector bowls to a crisp in not a very long period of time at all. Always, ALWAYS go 35w. Again, it's what OEMs use, and it's safe to use with our projectors.
Next, for the harness, DO go with the MOPAR-specific harness with the capacitor. Our car's electrics like to screw with headlights a lot. The inconsistencies in wattage can and do cause a tiny amount of flickering occasionally unless you have your wiring done properly and with the right harness. What I actually plan on doing later on this summer is hook up the HIDs straight to the battery with a manual switch. I'm sick and tired of dealing with this CANBUS bs and you'll understand why pretty soon.
So:
God tier - 4300k, 35w
Meh tier - 6000k, 35w
JDM riceboy tier - 8000K+, 35w
Car Barbecue tier - xxxxK, 55w