...Hmm... New to morbid angel... What to start with, that's a tough one.
Most of their stuff is pretty hard to get into, but once you are into it, you notice all these cool little bits and fills and stuff.
Probably start with Gateways to Annihilation if you are after 'accessability'... Formulas Fatal to the Flesh is more of an 'experiment', with crazy little jazz sections here and there, almost like a prog-death album.
I would reccomend Covenant if you are already into alot of Death metal, it's heavy as fuck, yet it still retains that 'oldschool' feel to it.
If you're up to download a few songs, download the slow/sludgy tracks first, such as: "God of emptiness", "Nothing is not", "Dawn of the angry", "At one with nothing".
Hope that helps a bit, dude with the weird name.