Okay fine I'll get the real dreamcast and everything two controllers memory unit and Soul Calibur 1 and if I only do PSP for TV on PS3 how should I do that?
Install rogero or habib cobra 4.55 cfw on ps3 then put your psp iso or cso on a usb drive in folder pspiso. You can play the psp games with from multiman or iris manager. There are full tutorials on the net and utube.
I have played ff crisis core and dissidia on my ps3 and they play fine. In my opinion you can't beat the handheld experience for those games but they are very playable on ps3. And if you own a psp, vita, or Android device you can connect it to your ps3 and play off tv. You can also play ps2 and psx isos with that cfw.