I've been very happy with my Blue Circle Power Pillow. I don't use it for my amps, but everything else (pre/cd/table) are running through it. Smooth and non-limiting. I can't recall the price, but less than $500 for sure.
Bargain power conditioners
Does anyone have any experience using a power conditioner made for computers (ie: the APC Line R 600 which cost around $150) with a high end audio system (front end). It seems to me that these might provide a similar level of protection and enhancement for a fraction of the cost of an 'audiophile power conditioner'. Thanks.