Prereleases for Primal Clash are going on now at local game stores. Great way to get cards early before they're overpriced for being meta (or selling them at a profit making people believe they'll be meta).

Next set is bringing back trainer's Pokemon with Team Magma and Aqua's Pokemon. Sadly, no dual-dark typing on them, but what we have so far is scattered along Pokebeach news articles (including Team Magma Great Ball, which is great)

PTCGO client:
http://www.pokemon.com/us/pokemon-tcg/play-online/download/
The client does not have PRC cards/packs yet, they'll show up on release date (February 4th) or, given the TCGO staff's record, 1-3 days after that.

Decklists from Worlds:
http://www.pokemon.com/us/play-pokemon/worlds/2014/decks/popular/

News for TCG:
http://pokebeach.com/

Standard Legal card list:
http://pokegym.net/forums/view.php?pg=stdformat

General prices for PTCGO:
http://forums.pokemontcg.com/topic/25163-the-top-cut-trading-inc-2/
Note, you'll have to log in with Pokemon.com account, take prices with a grain of salt

Most physical cards you own will not be worth much unless they've been minted, just get that out of the way now. Most people will have the reprinted copies of incredibly valuable cards rather than the expensive and rare copies. Those expensive cards will likely have gone incredibly down in value now that they're no longer legal for play. Check card sites like TrollandToad, Collector's Cache, Pokeorder, eBay, and other sites like that before asking for values on cards.

>ToTT: How are you preparing for the ORAS block? Planning on playing any decks with new support? Water and Fairy got huge buffs come PRC