Thus, I am looking for a second purchase (my first purchase will be actually buying PCB, since I feel guilty pirating a game I play heavily, even if it's difficult to purchase legally). I only want to start playing one other game, so that I can focus on it.
I think I'm looking for a game only moderately different from PCB. If I wanted something very similar, I'd go get another Touhou game; rather, I want a game that will open me up to a wider variety of shmups. (Plus, I hear the Touhou series gets a bad rap here, so sticking with it seems foolish.) However, I don't want something too foreign.
My available systems are fairly limited; I've got a 360, a PS2, a Gamecube, and a DS, all US. I also have a PC, and can emulate if that would be better. (I've got a Playstation 2 controller -> USB adapter, so I can play on a gamepad, although keyboard play has worked well enough for PCB.)
I also don't want something too difficult; finishing the game without throwing credits at it should be at least conceivable.
Of course, you should feel free to ignore all of this if you think I'm being stupid
