Welcome to the board, henree! Yes, Mark looked really good against Johanssen(sp). Johanssen looked good for such a long lay off as well. I agree with everyone about Mark's weight loss, foot speed, and foot work, especially in the second set as Snoopy_Girl pointed out. I'm not looking at him as a dark horse for this race. But, I'd be really happy if he took the title. My dark horse picks are Nalbandian, Safin, Blake, or Ginepri in no particular order.
EDIT TO ADD: Another dark horse - Dent. Grunts. I didn't notice. I like to listen to the ball against the raquet when I watch tennis, too. That's why I'm torn between muting commentators and listening to the ball sometimes.
I thought that Mark hit a heavy, clean ball from what I heard. I think that after Monica Seles I just started ignoring the grunts, except Sharapova *cringe*.
Having ESPN, I've been able to view Andy ad nauseum. So, I'd have to agree with you about his understated, patient game. I think it's a sign of maturity, security and confidence with being number one in the world, and the Gilbert influence. He'll really need a patient game going into the clay court season. I'm glad he's pulling up on the FH because every FH doesn't need to be a heat seeking missile. The test for Andy will be how his demeanor holds when he encounters any real resistance in a match.
There are a lot of polls on this board. But, there are great discussions as well and a lot of knowledgeable, impassioned tennis fans. I like the laid back, tolerant atmosphere here. I just jump in when the topic interests me. You'll pick up on cycles after a while. I hope you have fun here.