In a small bowl, mix together the onion powder, garlic powder, and some cracked black pepper. Season the meat lightly, using only part of the mixture. Reserve the remaining spices. Place into an airtight plastic container or bowl, and refrigerate overnight.
In a saucepan over medium heat, mix together the brown sugar, soy sauce, teriyaki sauce, Worcestershire sauce, balsamic vinegar, liquid smoke flavoring and pineapple juice. Heat until the brown sugar has completely dissolved. Refrigerate marinade overnight.
Add the sliced beef a plastic bag. Pour cooled marinade over the seasoned meat and mix by hand to coat. Seal in plastic bag, refrigerate, and allow to marinade overnight.