1st century pronunciation of greek

I am familiar with W.Sidney Allen's VOX GRAECA, which details the 
pronunciation of 5th century Attic Greek, but was wondering if anyone 
could provide me with details of how the pronunciation would have changed 
by NT times.

I'm interested in something that does for the 1st century AD what VOX 
GRAECA does for the 5th century BC.

James K. Tauber, Undergraduate Student          ``Perplexed but not
Centre for Linguistics, UWA, Australia	             despairing''
E-mail: jtauber@tartarus.uwa.edu.au                    - Paul (2 Cor 4.8)
WWW:    ftp://tartarus.uwa.edu.au/pub/jtauber/main.html