I got the Morimoto HID kit for my headlights and they are amazing. Quality is top notch, service is great, the harness has a relay in it. If it were me this is where I would get all of it in terms of HID stuff. Price is higher then some but get what you pay for.
For interior lights, daytime runners, and back up you can go LED. I usually use superbrightleds.com and there you can put your car in and it will give you all the bulb numbers. I've used them before and never had a problem.
FYI, people use v-led.com too but I ordered a set for my city lights that were 5k to match my 5k HID headlights but the leds were more greenish and didn't like it. I just had better matches with superbrightleds.com