Mine got approved in 30 days (Atlanta Center). But that was on early 2008.  It looks like, it is taking longer to those who have filed  after May 2008-  approximately 8 months  if the case is not audited. The legal fees of my PERM  case was about $1800.00 and there was no filing fees. To my understanding, your employer should be responsible to the cost of PERM filings.