Big Job I would be really interested in your thoughts on how to wire this setup up.
okay here is my 3 uses of the POD XT.
For recording I use cool edit pro/adobe audition. You have to install the latest version (3.5) of the Line6 gear box plugin to your computer. This is a program that allows you to tweak the Pod's settings on your computer screen...you can see the amp and effects chain right there on the monitor.
Okay, as for sound you have to now think of the Pod as your computer sound card, as a result of this you will have to attach a speaker to each of the Pods outputs (left and right).
Also, please keep in mind that you will have to configure your computer to use the Pod as the sound card - this is important. Set it as the audio in and audio out for your recording package.
Next - you have to have gearbox running in the background to hear the sound of the Pod. Once the gearbox program is installed you put in the Pod (via the USB connector on the back) and it will now recognise the Pod. However, you will probarbly have to update the drivers, but these are all avaliable from the line 6 web page.
When this is all done you can record! The results are very good indeed and I dont know why people haven't used this more and more - Ithink that people just put the Pod into their sound card, like a stomp box and expect awesome results. Not so! Use the USB feature.
2) Playing at home.
I rest the Pod XT and the 20/20 power amp on the top of my marshall 4 x 12 and hook it up as follows.....
Guitar - to input of pod - out put of pod to input of 20/20 - out put of 20/20 to the hole in the back of the marshall. There are two holes to choose from but I dont know what the difference is!
3) Playing live.
Now normally 'gigs' are at university and people are only there because they want to get drunk or laid. Thereofre I dont worry too much about my tone or if I play some bad notes, but the general rule is as above.....
Guitar - to input of pod - out put of pod to input of PA.
Thats about it really. I hope that answers any questions - if you have any more please feel free to get in contact and I will do what I can to help. Line 6 equipment is really good - and it gets a bad wrap because people can't use it properley.