Depends on whether you will use all the functionality of the PODxt.
You'll get model packs, Line6 Edit, and the Guitar Port software as well. So it will pretty much do anything you want it to do, and then some.
However, if you're going to end up just using one or two tones from it's arsenal, and not touch all the rest of the stuff that it can do for you, then why waste the money ? You might consider getting a V-AMP 2. Check out El_jalapeno's latest offering using a VAMP on Led Zep
's Rock n Roll.
But if you're going to play around with all of the settings and tweak everything to continually create umpeen of your own tones, using all the numerous amp combinations and stomp boxes, then I higly recommend the POD xt.
I only say because I don't really use everything on my POD xt. I generally use it as a Tone jukebox. I just download a tone from the website (customtone.com), and take it as stock. However, I have recently started to dabble with the extra functionality of the POD xt, and am really impressed with how easy it is to use, and the fact that you have so many options available to you.
I am the kind of guy who is more comfortable having a unit that does more than I could possibly need, just in case, I ever get round to using the extra features. But if you're only going to use it as a tone jukebox, then the POD 2.0 might be for you.
Points to consider though are :
<ul type="square">[*]PODxt is Line6's flagship, so they are pushing all the updates and tones for that[*]If you want to ensure you can use any tone you download, then the PODxt is the way to go, with the model packs to be sure[*]PODxt is constantly getting updates, great support, and excellent (free) software to use. I think POD 2.0 has stopped being supported now ?[/list]Good luck in your decision.