MtGox finally accepted my bank account. Pushed some PLN to my bank. We'll see. It is rather low amount (less than 0.2 BTC). Will keep you informed.
if it's a SEPA Withdrawal, good luck!

Hard to say. People are reporting that all SEPA withdrawals are done through a Polish bank (BZWBK). I don't know how MtGox transfers fiat from Japan to BZWBK, but then they send SEPA transfers from there. In my case it would be simplier, as they can just transfer PLN between two Polish banks with a domestic Polish bank transfer. This is usually very fast (24 hours). Anyway I
do expect delays, just want to verify this method of withdrawal.