Hi. I'm a new player and I have a core set and four of the six expansions. However, I wondered how and if I could get hold of additional house cards for new decks. I had a peek at google with no luck. It just seems odd having to switch house cards from deck to deck. For example, I have a Cersei based Lannister deck and a Clansmen deck but only one house card to go between and photocopying house cards isn't something I want to have to do. Any ideas guys?
House card availability
House Cards aren't specifically available separately, at least not through conventional means. They are occasionally included as tournament prizes (with new art or styling), and are available in the core set. A shortage of house cards hasn't really been an issue, as most players recommend you buy a second Core set (to gain more copies of the cards that you might want more than one of in your deck and have multiple copies of key plots etc).
In addition, given that your house card is generally kept separate from your other cards (different sleeve, or top of your deck, etc), its generally not too onerous to switch one from deck to deck, and in the worst case scenario I'm sure no opponent will complain if you don't have one and just put any random card face down and say it's your house card.
www.eaglecard.org sell sets of the CS house cards for € 2,-
Here's an eBay shop that sells AGoT LCG singles; I haven't found the house cards in the shop, but I bet the guy has a ton lying around, and if you contact him, you'll be able to negotiate a deal.
Both of these shops are in Europe though, so I don't know about postage to your corner of the world. But since a bunch of house cards easily fit in a letter, it shouldn't be a problem.
Or you just go the obvious route and buy more core sets!
http://teamcovenant.com/store/a-game-of-thrones-lcg.html?cat=164&p=1.
I only see grayjoy and martell listed, but if you email them they may have the others.