I'm not fond of Ondskapt but it was $6, and I can't turn that down for worthwhile tradable material. The Urfaust is FANTASTIC, I've been digging it since it came out, but never quite got around to owning it. Was $6 too. To put that into perspective for you, most CD's sell in stores for $30-35 here, and mailorders sell for $15-20.
The Angantyr is indeed splendid. Was one of my favourites of 2004. Again, finally getting around to owning it. I'd recommend it highly, because it's one of those bands that just seems to get everything right... not original, but still totally great.