The best interconnects that I have found at the under $1000 (new) price point for Ayre products are Ayre's own interconnects. They are made by Cardas at Ayre's specifications. Over that, the Stereovox BAL-600 cables ($2500 retail) are amazing and that is what I currently use.
Regarding power cords, try Silent Source (from Walker Audio). They are what I use and are fantastic. They were recommended by a audio reviewer who uses Ayre as his reference products and tried numerous power cables and settled with the Silent Source cables. Ayre uses Cardas Golden Reference power cables in their in-house systems.
Finally, get the Ayre/Cardas myrtle blocks -- they really work.
Good luck!
Regarding power cords, try Silent Source (from Walker Audio). They are what I use and are fantastic. They were recommended by a audio reviewer who uses Ayre as his reference products and tried numerous power cables and settled with the Silent Source cables. Ayre uses Cardas Golden Reference power cables in their in-house systems.
Finally, get the Ayre/Cardas myrtle blocks -- they really work.
Good luck!