I'm still a newbie to learning all the cards myself. It's a slow work in progress but a fun one. I started by focusing on The Fool card (the one labeled 0 but typically first in the deck) and looking up all I could about it - the symbolisms etc. Once I get a grasp on that one, I plan on moving to the next card. Some of my favorite cards include the Hermit (Jimmy) , the World card, The Fool, The Lovers, Judgement, and that's just focusing on the Major Arcana cards.
I first seen the Steampunk deck by way of a site called "Aeclectic Tarot". They have a link on their homepage that showcases hundreds of different tarot decks.