I don't want to discourage you, but we tried... and tried.. and our girl (18mo at the time) thought our newborn was awesome when we visited mommy in the hospital the day after. She did not think it was awesome that the baby was coming home with us. And that mommy spent all day with the new baby. There was no consoling her at all.
She was completely upset for about 3-4 weeks. But very soon, she started playing with her baby doll much more than she had before. Things got much more involved when she would do to the baby what mommy did to our newborn. She'd put the baby doll in the car seat, wrap baby in blankets, rock baby to sleep just like mommy rocked our newborn. And that helped a lot.
And now, 3 months later, she's an absolutely wonderful big sister. She gives little sister a hug and a kiss at night, and is appropriately gentle when doing so (which she isn't with most things...)
The key thing was consistency: first, never letting her feel that she wasn't loved too. That it was okay for mommy and daddy to love both her and the newborn. Second, to make sure that the newborn was around -alot-. Make it very clear that she's not going anywhere just because you don't like it. If you want to have no newborn, you'd have to have no mommy too, because mommy has to be with the newborn. And third was making sure that she was able to be involved. If we could have an opportunity for her to help, we did. Sometimes we'd even invent things. Maybe we didn't need the blanket to go over the car seat today because the weather was good, but we'd ask her to get it anyway. So she'd scurry across the room and get the blanket, and she'd even put it on the carseat (sometimes better than others :).
So I don't think you will necessarily be able to avoid jealousy. For us, instead of trying to avoid it, we tried (and succeeded in) breaking through it. Your milage may vary, but try not to fall into the trap that because she doesn't take kindly to the newborn for the first couple weeks that it will always be that way.