New 2005 Murano Owner! Questions

[Okami]

Hey guys! Just got a 05 SL murano with 38k miles for a great price. This is the first car i bought myself after my starter car (94 honda accord) and I have a few questions and comments.

First! I love the car. So smooth and got a lot of compliments on it already. I'm averaging about 18-19.3 mpg on mostly suburb driving. Hopefully as I learn more i'll get better at it. I am going to do the ipod and bose speaker mods soon.

Right now there are a few light scratches around the car.

1) Is there a recommended touch up pen for a black Murano?

2) How about for the chrome paint inside?

3) Is there anyway to get the rear chrome bumper guard that are on some of the newer models on mine?

4) What is a good leather cleaner / conditioner to use.

5) While everything seems to be running fine I have about 1000+ miles left on the original warranty. Should I take it in for a full check up and is there anything I should tell them to double check?

6) Can i get an extended warranty from nissan or do i have to go third party? any recommendations?

Thanks so much guys! looking forward to do a lot of mods and additions i see in the forums!