This is why a MAC kicks butt, it comes with garage band and you can record into it directly, without a microphone, and you can download "switch" to convert files and "wavepad" to edit them, for free.
Just hit up Google....there should be a lot of options out there.
Here's one that I found: MP3 Sound Recorder 2.54
I found it at "freedownloadscenter.com" (I can't post the link directly since I haven't made 10 posts yet on this forum; sorry)
You don't have to have a "MAC" to have great, intuitive software; if anything, by having a pc, you usually have access to a heck of a lot more options (but to be fair, many of those options will be crap! lol).
Not that mac's are bad or anything; I just get tired of hearing about them. Mac, Pc, WHO CARES!!!!