I like to think of myself as a vodka enthusiast, and tend to be very picky when it comes to brands. Stoli is my absolute favorite but I am really excited about a product called p.i.n.k vodka. It's got the essentials of what I would want in a vodka (80 proof, flavorless), plus the addition of caffeine and guarana! The claim is that each ounce of the spirit contains the equivalent of 1/2 to 3/4 of a cup of coffee without being too intense and overbearing.
The website is also great and they have a recipe guide available for downloading.
I'm really feeling this!