There is one suspension place i recommend over all others - although it is in north melbourne.
Talk to Ralph at Trutrack Pty Ltd, 52-62 Leveson St., North Melbourne.
This company has treated me with the utmost respect (even though my car was nothing special), to the extent that Ralph test drove my car after he had his boys set it up, wasn't happy, and went through the whole process of putting it on the alignment machine (twice!).
Boy did the car drive well after that..
-Patrick
Oh, the main reason it took so long to set up was that i had a very non-standard suspension setup on an old Honda. Also, they charge a fixed fee.