eclevo4g

I am new to the whole Nissan world..I have a s14 and just wanted to know a few things.

1. NGK's are the best wires for the car? where do I find them at for some reason
all the auto parts store in GA doesn't carry them.

2. I am going to do the J30 rear diff swap..while my diff is it what else should be
change while it's down?

3. I know ppl on here have down the Q45 brake swap, how do y'all like the
upgrade. Pro's and Con's to this swap.

Sorry I know folks are going to be like research and look it up..it's hard doing this from my htc evo. Thanks again and I do love my S14