Hey bro... I am not sure if I am to late for this but this exact thing happened to me in Feb. The DEA, US Customs and Sherifs Narc units came to visit me after a package from Romania containing 2000 napos was left at my house. I was charged with Criminal Possession of a Controlled Substance with Intent to Sell. This is a "B" Felony, punishable up to 25 years in prison.
This was Feb 19th, and I am still in court over it. I went 6 times already and I go for the last time on Oct 7th, where I will get sentenced. I pleaded guilty a couple weeks ago to to a plea bargin which was, "Attempted possesion of a controlled substanced", this is an "E" Felony punishable up to 4 years in prison. I am getting 5 years or proby out of this.
Are you sure you have all your facts straight about this? Maybe the laws are different here in NY but I was arraigned the next morning after being arresting, not a month later. I had a Lawyer presant at the arraignment (which you should too). Also I cant see why this would be a "B" felony in NY and a felony/misdemeanor in CA. I also find it hard to beleive that they didnt try to get a source from you. They spent a couple hours trying to get me to give up everyone I knew that ever even looked at an illegal drug.
GET A LAWYER!!!!!!