I'm thinking about getting a PSP an had a question about the emulation. If I want to play GBA and SNES games, do I need to be running a CFW? Also, I know that SNES emu is iffy at best, but how does GBA emulation perform? Also, do I need to use a CFW to play any PSP games that I get off the net. (In fact, is that even possible, even with a CFW?)