I'd be with >>2, except for the fact that that's the "normal" scenario. We here at 4-ch are not normal, and instead of cheating and buying cocaine, i'm sure >>1 would just buy some hentai and a few DVDs.
However, all the advice I can give to you >>1 is the stuff I'm sure you've already thought of. Clean yourself up, get a nice suit, make yourself "presentable." Other than that, bullshit your way through the interview and tell them exactly what they want to hear. These kind of things are sort of hit or miss from the second you walk in the door, but I wish you luck.