VSD's and Line Reactors

Hi all,

I'm looking for a low cost VSD for a 3/4 HP 3ph motor for use on my 9"
lathe.

AutomationDirect has a 1hp unit for under $200 but 'highly recomends' a
Line Reactor. The Line Reactor is about the same price as the VSD.

My questions are.

Is a Line Reactor a good feature or not needed in a home shop. We have
a couple computers in the house and obviously the PC as a controller on
the CNC stuff.

Is a line reactor something that is easily obtained from a junk yard ?
I walked past one the other day, but it was huge, at least a 18inches
high.

Dave