Stock wires are NGK.. If your going to get new wires go with NGK.. They work great especially for the money.. You probably dont even need new wires unless they are old. I wouldnt get colder plugs until after you get some sort of FI. Your car in its NA form will run much better with hotter plugs. Just get the Copper NGKs for that too. Theres really no reason not to yet. NGK coppers are only about 8-10$ a set.
Call
www.coximports.com for the NGK stuff.. its 55$ for the wires and 8$ for the plugs.. Their sevice is great too. I think they even have free shipping too.