still waiting for a 5 digits transaction (EUR) since
june 24 (almost 2 month!).
Wrote to Gox's support.. response with standard text "will take serval weeks".

You should send as EUR SEPA (if your account is within the SEPArea), not international wire. SEPA should take a week or less.
The truth is it seems pretty random. What's obvious is that the "withdrawals are processed in receiving order" is utter BS. Just now some people reports SEPA withdrawals clearing in 15/20 days, some others have been +5 weeks waiting.