I would start with a major electronics store such as Best Buy. I know that they carry a lot of DVD collections. I just recently purchased a few there myself.
He died, the symbolism with the cat looking at Chris' photo after he died ties in. The last time we see Paulie he is sitting outside Satrielli's and the cat is staring at him. This is obviously only speculation but it's clearly related.
Yes, Michele DeCesare, Chase's daughter played the character of Hunter, Meadow Soprano's high school friend. She appeared numerous times early in the series, and then again in the series finale, "Made In America."
The names of the main Soprano family are Tony, Carmella, AJ, and Meadow.
She played Stace in the Sopranos (in the 2000`s) the episode is called D-girl
At about minute 48, Tony walks down to the garage to get more ice for the confirmation party. He rounds a corner to find AJ and two friends smoking pot. One of the friends is played by Elizabeth Reaser -- she's barely on screen at all and has no lines.