I gots me a brand new shiny GameCube for Christmas, along with Clone Wars, Rogue Squadron II, and Return of the King. Hardware-wise, I have an extra controller and one memory card.
I plan to get the Gameboy Adapter soon, as I have tons of old Gameboy games (and love many that I don't own and can probably get pretty cheap). I've also seen in my area one of the Harry Potter games (Sorcerer's Stone, I think) for $12.89, and Best Buy has Rogue Squadron III on sale this week, so I might get those, too. Jedi Outcast and Bounty Hunter (that is available on GameCube, right?) will likely be joining my collection soon, too.
Aside from that, what are the absolute "must haves" that I should get? Any hep here would be hot!