Talking of modelers. I've heard people get excellent results just with Guitar Rig. Yeah I know the consensus is that the FX section of GR is where it's at and the amp sims are pants, but I've heard people do good stuff with it. At least they claimed it was GR. I'm happy with free plugins and Recabinet. Programs like iZotope Trash that use convolution can take a standard guitar tone and turn it in to pretty much anything else. Lots of confusion about amp sims and what they are and what they do. At the end of the day you are trying to emulate a mic'd up guitar speaker, being driven by an amp. And even if you get just a 'meh' tone, you can turn that in to a killer tone using convolution programs on top of that. It's amazing what you can do. But no, there is no substitute for a real guitar amp in software yet. It's a different type of thing. I know holy wars rage over this, and I don't pretend to know much about it. But I can get pretty good guitar tones just using a computer, oh, and my Mustang I via USB. What is amazing about modeling, is that you can stick your headphones in to the jack of the Mustang, and it emulates the load on the speaker and actually sounds like it is coming out of the speaker, because it has been physically modeled to do so. So many take that for granted. Modeling is not just about the circuitry of the amp, it's about the load on the speaker and the pushing out of the sine waves that all music is ultimately comprised of. A lot of people take that for granted.