I'm thinking I might want to use some modeling software instead of my POD for demos. What's out there that's good? Save me from buying an AXE-FX please!
Edit: needs to be ProTools compatible.
Ah, modeling software... I think I've used quite a few by now, frankly I keep coming back to just Guitar Rig although I never use the built-in cabinets. Alternatively, you could give one of LePou's free plugins a chance - they actually sound really good though the higher-gain models are of course -very- noisy so I hope you remember to have a noise gate! And a cabinet sim, since aside from HyBrit all of LePou's plugins are pretty much just 'head only'.
Now, I think LePou's plugins are just VST only(don't recall), but you shouldn't have a problem with things only being in ProTools format as FXpansion released a VST to RTAS 'adapter' a while back. I don't really use Pro Tools but I keep hearing that it's very, very much a good idea to look into this.
... Personally though, I think Guitar Rig would still be a good bet. A lot of people are saying Waves GTR is good but when I tried it I wasn't too taken with it. You'll kind of have to demo a few different programs until you find the one that you like.