What is the best power cable under $200.00 retail?


Using:

Cambridge 840A V2
Totem Staffs
Sony C555ES SACD player

Also, will an upgraded power cable give me better sound without making any other changes? If so, what is your suggested cable for these components?
dmg
Thank you for these responses. What about an upgraded power cable with a 4 box? Analysis Plus, for example.
See if you can find a dealer with a loaner policy. Otherwise, you waste your money in not having an opportunity to 'hear' the differences.
Audio Art Cable PC - out of PS Audio, NAT, Signal Cable andone other that I've had that escapes me it is the only one where I heard a difference