P2P programs?

I need some advice,
Ive used kazaa… very bad mistake, when you install it read the part about alowing your computer to get hacked. Im still cleaning out viruses from it (had it about a year ago).
Ive got win mx seems ok… but not that amazing
but I want to know about limewire some of my mates use it but I need to ask people who have some know how about it… is it ok?

Thanks,
Coke