Cut mp3 to ringtone

Sometime instead of the whole song, I just want the certain part of a song to be my ring tone. iTunes has an awkward way to achieve this and the seems like the result is only supported in iPhone.
I used a freeware MP3 Knife last time - an simple and excellent software. Latest version is 3.6 so far.
However now I noticed that there is even a free online version for this purpose: http://mp3cut.net.

Steps are pretty simple:

1. Upload your mp3
2. Decide where you wan to start and stop with the indicator
3. Cut and download back to your PC.