Capacitive touch ADSR sliders?

Hey does anyone know of a touch slider light combo setup that I could use to make a really interactive ADSR slider? Like I would want to be able to just quickly slide my fingers up and down some strips to quickly change the envelope parameters during play. Having them be backlit or some corresponding LEDs to indicate values would be great too. I'mma mess with pure data a bit and try and get that hooked up together but if anyone knows some hardware that could be mapped to the right envelopes I would love some suggestions.