Ive always been here legally Levi and am still not one of 'yous' yet, but am working on that.....
I have my green card now for 2 years, once that is up I file for another to prove im married, this card is the good for 10 years. However on august 24th 2013 I can begin the process for citizenship, which I will do, and I dont have to give up my British passport.
Basically I can still be deported, cant vote, or draw social security, however I can work where I want instead of just with the school district I am employed with, and I travel on my card, which means no long lines coming into the country, as I come thru the US citizens line. Which is huge!!
All that info was given to me by my lawyer, so I hope its correct.