OK bear with me as I'm new to all these music downoading shenanigans...

How safe is Limewire? - I don't want police knocking on my door over a few free songs!

I have been getting tracks from itunes - I don't mind paying 80p for a song but it won't let me access the US store and I want some fresh cuts ya hear? Is there anyway I can access the US itunes or any other legal online music store?

Thanks fellas!