Sounds like a winner, Rob. I agree with the above - go to the white shirt if you wear the jacket. If you ditch the jacket, the gray shirt will be fine.

Don't be afraid of the button-down collar and DON'T wear one of those hideous wide spread ones. No tie ever looks right with those things.

The navy flashes will get you by, but consider some royal blue or ancient blue ones in the future. They'll work together with the tie and really set off the x-marks kilt.