Ok, I've read some posts about amp modeling gadgets. I'm still undecided. I want a device (not rack mount) which models various amps and cabs. AND WORKS GOOD FOR A LIVE SITUATION. I really don't need other effects, but I know they are usally part of a device. So basically, what device does the best job as a live amp modeler? Take into consideration the sound quailty and NOISE or hiss it makes. Bass pod ? bass pod xt? bass pod pro (rack) whats the diff? digitech? boss? korg?