As far as what kilt to wear to the Burn's dinner, I would wear the MacLaren Modern tartan. The dark colors will look nice at this type of event. I have the MacLaren Modern kilt as well, and it is a nice kilt. i just think it would really accentuate the rest of your highland attire as well.

Good luck, and have a good time at the Burn's Supper

Ard Choille

Mike