Hi, please recommend a good software (Macintosh) for make Jazz backing tracks , latin etc.

Thanks!

Hi.

If you're using a Mac, Garageband should work fine!?
If you don't have it installed, check it out on http://www.apple.com/ilife/garageband/
If you want/need something more professional you can always buy Logic, Cubase, Sonar or Reaper

Thank you! Yes i have both Garage band and Cubase, what keyboard its better for that kind of work? I have a Roland SD-700SX but i want something more practical.

What keyboard... you mean midi keyboard?
There are many out there, small ones, big ones, depends of what you need.

I would recommend something like this : http://www.m-audio.com/products/en_us/Oxygen49.html
if we are talking about a midi keyboard... You will also need some VST's in order to make nice backings.

Thanks a lot guys! Im going to check the Oxigen M Audio.

I have Oxygen 49, it's a cool device, but if you don't really need knobs and sliders you can get a controller in the same price range without knobs and sliders but with better keys.