I remembered that this could be an interesting thread to be made so... here ya go.
These are my favourite:
1.The Call of Ktulu (Metallica)
3.Wayfaerer (In Flames)
4.To Live Is To Die (Metallica)
5.Pallar Anders Visa (In Flames)
As you might notice, I don't know many instrumentals so I was hoppin those you guys out there who do know could instruct us retards