If you are looking in Deep Ellum, you will be mostly looking at raw spaces anyway. What price range? Check out my listing at 2220 Canton (Just outside Deep Ellum, near the Farmer's Market) Unit 106.
There is a great building at 215 N Walton. Unfortunately, nothing is available at this time. New construction has also diminished it's roof view.
There are some really great properties cropping up in the Cedars area, but that might be a little farther away from the "action".
Give a call if you need help. 972-949-2275