Yep, I originally stumbled on line 6 by looking at the link from this site about gear the Grateful Dead uses. Bobby has one of the rack mounted pod's in his set last time I was close enough to look.
If you've got usb-midi cables, you can download tones and transfer them to the pod. Try looking around at this site http://line6.com/customtone/
Although, I got to admit I hadn't been there for awhile. And I thought I'd downloaded some garcia tones in the past for my pod 2.0, but now I can't find them.
But regardless, if you've got the cables (and they ain't too expensive), its fun site to play around on downloading tones and passing them to the pod.
Of course, I'm a computer geek, so when I've got my pod wired to my computer, I like that and the control over the settings I get. With the Pod 2.0, its easier to manipulate some of the more obscure settings. About half the settings on the Pod 2.0 you get to by pushing something and then using the knobs for something different ... but I can never remember how. The computer interface exposes that directly.