Justin Hunt

Could be a few things

1) low glossie samples on the metal
2) Low samples on the area lights
3) Low image sampling

For each ofthose increase the samples. Also play with the fast interpolate settings. try increasing the neighbouhoor samples. Higher numbers produce soft/blurrier results, too high can cause blockyness.

Agree with the use of portal lights instead of area light, as they give more realistic reflections. Although with higher shadow samples can cause slower renders. Worth it though

Nice models by the way

jhv