Possible new Yaris owner with questions.

[Dexlin1011]

I am thinking of purchasing a new 2012 Toyota Yaris LE in either lagoon or the light blue( forgot the name of it).
I have some questions for those of you that already own your yarii'
1. Have any of you leased your Yaris instead of buying outright? If so can you give me a rough estimate what the residual is at the end of 36 mo. As if you were going to purchase car at the end of lease?
2. Any of you that owned the previous gen Yaris... What do you like better or not as much in the 12 version.
3. Aside from true car.com what are some real life success stories of getting the dealer to back off any of msrp? Are they budging at all?
I'm new to car buying experience so... Tips, suggestions are highly welcomed!
Someone was telling me that you have satellite radio on the Yaris, true?? I didn't see that when I test drove one?!
4. Do any of you wish you would have gone with a different car, maybe the Hyundai accent or elantra( the other two I am looking at)?