Front Office Football Central - Recording program?

ok i just went to radio shack and picked up a converter so i can plug my electric guitar into my computer and record. I messed around with the default program windows comes with and it worked. Quality wasn't good at all though and i couldn't do anything else with the file

so, what i'm wondering is what would be a good program to use. I want to be able to apply distortion and other effects(like i can with my amp and pedals) and record a few different tracks so I can work in vocals and other stuff.