Das and Samhar,
Regardless of whether you decide a power conditioner is worth the cost for a Basis table, you should consider getting a new belt from Basis. The newer, precision ground belt is a big improvement over an older belt and is not too costly. I don't really know how to quantify the difference, but two of my friends who heard a belt and Basis synchro upgrade thought the belt made more of a difference.
Regardless of whether you decide a power conditioner is worth the cost for a Basis table, you should consider getting a new belt from Basis. The newer, precision ground belt is a big improvement over an older belt and is not too costly. I don't really know how to quantify the difference, but two of my friends who heard a belt and Basis synchro upgrade thought the belt made more of a difference.