Heartwork is a great album. I got my copy signed by Michael Amott the last time he was in town. Its a great album for sure, in fact its my favorite carcass album, followed by Swansong in second place =)
I was watching some re-runs of Beavis and Butthead on MTV2 the other day, and they were watching the Heartwork video, lol. I was really surprised at how they bashed it though, they usually headbang to good metal. Either way, it was still cool to see it on beavis and butthead (i miss that show so much, lol).