I actually just found a Ber rune off of the Council during a Meph run. Now, if only I can find a Jah... By the way, I'm on ladder.
These are the methods I've heard to expedite your way to getting those high level runes for things like Enigma, Doom, etc.
1) Become a mercenary for hire. This basically entails you rushing people for their hellforge quests. You obviously need a powerful rushing character for this. Most people seem to use dual element sorcs with a strong merc, tele bone necro, or hammerdins from what I've seen. If anyone else uses something to good effect, please share.
2) MF alot and trade your wares for the highest runes you can. Even if you find only mid level gear, trade those for mid level runes and work your way up. Every little bit helps.
3) Countess runs. I personally haven't gotten anything above a shael from her but I have heard of people getting some good runes off of her. I don't do this though since I kinda got discouraged after 300 runs and nothing.