It goes without saying that your quickness, ballhandling and of course, DETERMINATION are crucial.
I'd also suggest watching the guys like Magic Johnson, Tony Parker, Allen Iverson, Jason Kidd (just to name a few) play. You can't find their plays on youtube.com
Also, you can search there for, for example, top 10 plays in 2007 or whatever.
On my website, specifially on this page, I have some tips on better ballhandling and all that. It's all free, so you can check it out if you want.