I read quite a lot about SEO and I have two questions about keywords.
How do I choose the good keyword for my site?
Some people say that the competition is not important, all you have to do is a:
If the number is not too high then it's a good keyword and it will be easy to get a top spot.
Others say that if the keyword has less than X global searches in Google keyword tool then it will be easy to rank high for this keyword (what are these numbers?).
What's the real answer?
And how much work, articles written, backlinks etc. do you need to get on the first page of Google, for example for a keyword with 12000 searches?