Wow...you have a rare car!!! Camry V6 5sp!!
NGK or Denso plugs are fine. Stick with platinum plugs, iridium plugs don't yeild much noticeable difference and can cost more than platinums. Any power increase you get is probably from new plugs and wires anyway.
Stay away from Bosch. Toyotas don't like them too much for what ever reason.
You can get NGK wires from
http://www.sparkplugs.com for about $35. They are the same as OE wires, but they're blue in color. Don't get the $100 plus power wires, any gains will be very minute.