89 200 clutch failure noises?

[WLAMB@denver.echobay.com]

     For the pass three days my 89 '200q has been making 
     ominous noises when the clutch pedal is depressed.
     That is to say, I get a whirling noise during engagment.
     No grinding or gear lash sounds though. Are these the symptoms
     of the end of the clutch wear cycle?  The car has 114K miles
     and I believe the original clutch.  Could these noises be
     associated with hydraulic failure instead?  Thanks in
     advance. 
     
     Bill
     
     ps Can a first time  Audi clutch job be performed using only jack 
     stands, the normal assortment of metric tools, reasonable skills and 
     the Bentley book or should this be delegated to the masters?  What is
     a fair price for the work?