In another thread some really helpful members answered my question about standing ears, let me find it for you....
http://www.yorkietalk.com/forums/showthread.php?t=29669
Hope that helps some more.
We're probably going to go with trimming Bella's ears and seeing if they stand, she's 10 weeks now. I started massaging her ears today (she actually LET ME! I was shocked), and am going to see how well that does over the next few days. She turns 11 weeks on Monday.
Congrats on your new baby!