California is, in my opinion, the most beautiful state in the world. Really; but San Diego is hot and never has seasons (I lived there for a while). I suggest you plan a trip to Cali and visit the biggest areas: SanFrancisco/Berkeley, San Diego, and LA.
Personally, SanFrancisco/Berkeley area is my fav because the people are just weird enough for me and not to snobby like in Southern Cal. The laws are nice (check out Oakland's attitude on medicinal marijuana; cops are forbidden from making arrests on ANY marijuana charge, or something like that). The Bay Area is directly in the middle of all the major ecosystems of California; you can access the following in 30 minutes to 3 hours: the Pacific ocean (better than the Atlantic), river valleys with beautiful plains, farm land with thriving crops, and huge Sierra Nevada mountains with hiking, skiing, backpacking galore.
Come visit Cali first. Regarding the card, the big question is, do you have any oweys? I have an old back injury that still acts up a few times a month and causes me 2 out of 10 pain daily, so technically, I'm good for a card. I'd rather have just a letter from my doc though (a letter is all you need to join most clubs); I don't know how safe my info is with a card, but with a letter only I and my doc know.
Where are you moving from?