Where to find Tempeh - you will find tempeh in the refrigerator section of most large grocery stores and Whole Food style markets. It is generally kept with other soy proteins, tofu and meat analogs.
Balsamic - the color of the roasted tempeh may change depending on the depth of color of your ingredients, notably the vinegar. Different brands may result in a deeper, richer final color.
Vinaigrette - if serving the tempeh as a salad, you can create a simple vinaigrette to go along with the greens or simply reserve a touch of the marinade for drizzling.
Grilling - tempeh's resilient texture works well in pan sautés, oven roasting and grilling, so you can experiment as you wish.