“Learning Spanish Like Crazy”, they’ve got videos you can watch, audio things to download and burn, transcripts to read. All kinds of stuff.

Rosetta stone is god – but I think Rocket will suit you better. Have a look at a review here:

rosetta stone is expensive but worth it….it teaches you it perfectly so you will make people think you actually lived in another country.

You don’t have to buy all 3 at the same time…get them one by one and it’s cheaper but I highly recommend the rosetta stone

I wonder, don’t they teach Spanish at your school?

Before getting an expensive course I suggest you try to find a course with a real teacher in the area where you live. You could try to find out in the local library.

Then, there’s the option of checking a few websites:

Once you’ve mastered the basics you can try some student exchange:

…

If you need help with pronunciation, use this website:
…

But remember, nothing can substitute a teacher!!!!

You could learn from your Argentinian friend