What I hate, is that the processing is no more than 3-5 days when you send money to your Gox account. They say that they have to "process" the transfers.
That's already much too long, if you ask me. Sent a deposit recently to both MtGox and Bitstamp at the same time. Bitstamp was credited within 36 hours. Gox is still waiting, that's 4 days now... Maybe they give higher priority to larger transactions...