Power Conditioners Suited to Digital Front End


I guess my subject line says it all. I'm interested in suggestions for the best power conditoners for use with a digital front end. I'm using Accustic Arts transport and dac; I will not be using the conditioner with any other devices. Thanks.
pubul57
First, a question for you: what's your budget? Prices for power conditioners vary widely, so first you need to decide how much you can spend. Let the readers know, and it will help them to formulate helpful advice.
I want the cheapest thing that works well, but would pay $3000 if it was worth the improvement. I was thinking of a Power Plant 300, but am totally open to suggestions. I want to optimize the perfomance of by Transort & DAC. I did buy a $3,000 digital interconnect (Stealth) so if a conditioner made a real difference I would be willing to invest. I just feel a bit sceptical about the product category, but I'm open to new ideas on the subject. Thanks.