Nissans - especially with ignition components - seem to be very sensitive to using OEM parts. I would go with Nissan OEM parts for the distributor cap and rotor, OEM specified NGK plugs (especially skip Bosch platinums) dealer or parts place are the same in this case. Might as well go OEM with the drive belts and fuel filter at the same time... their prices are competitive. I found the Nissan price to be outrageous for plug wires, so I'm going to try NGK wires from
http://www.sparkplugs.com on mine. For the other parts, my favorite online supplier is
http://www.everythingnissan.com
They're moving from one location to another in Scottsdale AZ, so there may be some delay if you order this week.
Good luck!
Heath