hey SparklingCider,
i've been using the Pimsleur language tapes. they are the bomb! the set includes 5 tapes (10 lessons total, 30 minutes each) - the dude (Pimsleur) is a linguist and he devised a very effective method to teach conversational armenian. if you're really serious, check it out...
30% discount on amazon...
Western Armenian
Eastern Armenian
i'm on lesson seven and i've learned more than i thought i would (not just vocubulary and phrases, but language structure, as well) - my dad is amazed!
let me know if you have any questions about the tapes.
good luck!