I want to move to South America, what will I need, how realistic is this?

I want to move to South America, what will I need, how realistic is this?
My partner and I both live in the United States but want to move somewhere in South America, we're thinking Argentina, Chile, Peru, or Ecuador. We are going to work for a while here in the states to save up money so it will still be a while until the move is imminent. I know they speak Spanish in all of those countries, my partner speaks it fluently, and I'm learning quickly. What I want to know is what countries out of the ones I listed would be the best to move to, in terms of cost of living, how easy/difficult it is to get a job, and just living there in general? How much money would be a good amount to have saved before making the move? Any resources you could point me to would be much appreciated. :)
Immigration - 3 Answers
Random Answers, Critics, Comments, Opinions :
1 :
Are you an ex-Nazi? If so, you will have no problem finding your way to South America.
2 :
South America and most other countries on earth allow almost NO legal immigration. Remember this the next time you hear some racist la raza nazi hispanic complaining about Americas immigration policy's.
3 :
Moving to South America is very feasible. My whole family moved to Ecuador (parents and four kids). We love living in Ecuador and have had some cool experiences. Right now my husband and I are working in the US, saving to go back. We plan to save about $6,000 to stay for a year (we own a house so we won't being paying rent). I'm not sure about the other countries you listed, but Ecuador is very affordable. See my website for more info...

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