TOEFL: A Good Start
I finally took one of the sample TOEFL test offered in a demo software that Wayne lent me. And I think my result was quite good. My score was in the range 233 - 290 from a maximum of 300! (The software gives only a range because it cannot correct the essay). My partial scores were: listening - 28; writing/structure - 13-30; Reading: 29.
Making 233 points is already enough to be admitted in a lot of USA universities... This means I will not have to study so much as I was expecting.