there is nothing you can get the is totaly free. All the P2P programs have a bit of spyware in them. Myself use limewire as seems to have the least. A few things you should do though to protect yourself.
a) Never allow full access to you computer hard drive with the P2P program.
b) created a folder that you down load to. Use it for only this purpose.
c) Once the file is down load it before you open it scan it with a virus scanner.
If a person has a virus on there computer it will also transmit the virus in the down load. If you find a virus in it. Deleate the file.
d) once file scanned can move it to another folder before opening it.

two major couses of virus infections is through P2P downloading and e-mails