I am curious about line conditioners.

Try a P.S. Audio Power Plant. It will amaze you. Besides you can get a 30 day in home trial and all you have to do is pay shipping. It is with out a doubt the best I have come across. I have used Chang,Monster and Audioprism. Check out the reviews and it was also componet of the year in "Stereophile".Good Luck!

The PS Audio stuff is very nice. Just be sure you want to afford the 500 watts of power it uses (the smallest model). I assume the bigger ones draw even more power.

Ref your comment about the "500 watts of power it uses"....while it's true the PS300 and similar units are only about 50% efficient, the amount it draws depends on what you plug into it! If you are only using it to power a digital front end for example (like I do), the components only draw about 40-50W, so the draw from the wall is roughly twice that, or 100W. People who are concerned about the electric bill should do their listening in the dark!