Hey SyrioForel! I'm not sure if we met, but I used to play in the Portland, OR area around 2005/06 (a little before Winter Edition). I've moved to NYC, but I believe there are players in the Seattle area, and I wouldn't be surprised if a local meta is somewhere in Portland. Try posting in the Metagame thread.
As for the new cards/distribution, the CCG cards are very compatible with the LCG cards in terms of (friendly) game play, but CCG cards are not considered legal for "standard format" tournaments. Generally speaking, there are a lot of cool mechanics in the LCG, and the six major houses are represented. Given that the transition to LCG is still fairly recent, the cardpool isn't quite as large as it was in the CCG days (depending on when you played), but I think you'll enjoy it.
Also, I heard from someone that the reason FFG switched to white borders was to give LCG a unique/distinguishable look from the CCG. So I think it was a branding issue. The first block of the LCG was originally planned for the CCG, and that's why it still has the black borders.