Thanks to all of you guys for answering!

I think you've made pretty good points about the relationship between dancing and rope jumping and boxing footwork, 'cause those are the one thing I've always sucked at (dancing) and the other thing I can't manage to do at the gym (rope jumping). You have to jump with one foot and then with the other?
If anyone have any tips on how to improve with the rope, thanks. I'll keep up the practice.
And that's a really good point about watching great fighters; I think that has helped my punches a little.
Have you guys been boxing for long? Is anyone a pro?