Good to hear you're going to Sac-Anime! I may be going as well, not quite sure yet.
For Naruto cosplay, I think you'd make a good Itachi, Shikamaru, or Sasuke.
Non-Naruto, I'd suggest Phoenix Wright from the video game series, Squall Leonhart from Final Fantasy 8, or Great Saiyaman(Gohan) from Dragon Ball Z.
I kinda look like you in real life(5 ft 9 inches, 150lbs approx, Asian male). It's generally better to be taller for cosplay, so lucky you.