I've got...
Roddick past Nadal in the quarters
Andy v Andy in the semis
Nalbandian past Federer in the semis
Nalbandian over Roddick in the final
lol This is going to be one of the best slams in years (...at least we can only hope to be so lucky)
I've also got Santoro beating Isner in 1R (but that's with my heart, not my head). But it's waaaay premature to say the tour has already seen enough of Isner's game/serve--only these 9 active players have faced him in an ATP event.
1 Becker, Benjamin (2x)
2 De Voest, Rik
3 Federer, Roger
4 Ferrer, David (2x)
5 Haas, Tommy
6 Monfils, Gael
7 Nieminen, Jarkko
8 Odesnik, Wayne
9 Roddick, Andy
I wouldn't read too much into his late season results, either. 2007 was his first year on tour. Every youngster new to the tour gets fatigued by year's end. He had quite a run during the summer and got his first taste of playing best-of-5 sets. I suspect he'll progress slowly like Karlovic.