Chela (clay), Nalbandian, Blake(hard), Youzny, Berdych, Jockovich (sp?), and of course Roddick are all potential Grand Slam winners. (Nadal and Federer being favorites, of course.)
Murray might surface again if he get his head straight. He is technically strong but can't seem to cope with being behind. I wonder why that is?
Roddick needs to learn WHEN to go to the net, and not on his second serve as he has been doing. Yes, Roddick has a whole new game but it beggars belief that he and Connors have obviously failed to cover some basic do's and dont's. Hearing Roddick's rudeness to court officials has turned me off as a fan of his.
I think Safin needs to find consistency as he may be the very best in the world (yes) when playing well. Is it too late for him? Roger Federer's edge over players such as Murray and Safin is that he is consistent. He also plays the right shots. He has the range of strokes and his temperment is respectful of his opponent, mainly I would say, because he is respectful of the game.
My predictions. I think it's going to be a year of upsets. Neither Federer nor Nadal will win the French. It may be Gonzalez year as he is a good temperment, is not afraid, has real belief, and has shown real improvement under his new coach. Murray might find that clay is his best surface as he can chase down anything. David Ferrer is another real battler. An injury free Blake or Genepri might make the US open semis. Is Puerta back for the French? He'd be my choice to win it.
You'd think Federer would win Wimbledon but I think if he exits early in the French (which I hope he doesn't) it might just pressure him too much. A win at the French would almost guarantee a Federer Wimbledon but it's all conjecture, about fitness and a little bit of luck. Nalbandian can always be relied on to eliminate contenders but, time and again, has faltered at the final hurdle. He blew a 4-0 lead against Federer in last years Master's cup in China to an injured Federer.