Hi there..I've personally been a long-time Warhammer player (the miniatures game) and just acquired this boxed set in a trade. My girlfriend and I would like to play as the factions we already own in the miniatures game. So can anyone give a quick run-down on which ones are worthy expansions to get for these factions?

I play Vampire Counts and Orcs

She plays Lizardmen and Dwarfs.

Thanks in advance from both of us for any tidbits.

Get the March of the Damned deluxe expansion for a high number of Lizardmen and Undead cards, and Hidden Kingdoms for more and their own capitals. Cards for them and Orcs and Dwarfs can be found in many battle packs too. The highest number of Orc and Dwarf cards can be found in The Iron Rock and Karaz-a-Karak packs, respectively.

You can use http://deckbox.org/games/whi/cards to search for packs and deluxe expansion (Edition) that contain Dwarf/Orc (Race) or Undead/Lizardmen (Traits) cards and see which appeal to you.

Awesome site. Thanks for the suggestions!