Is there any way (or if anyone has done) an Ubuntu Live USB with PE Windows and/or BartPE? I would like to combine these two together and just be able to choose which one I would like to boot/use ...

If you don't have an Ubuntu 8.04 Live CD then you'll need to download the .ISO file and burn one. Full installation gallery here Before we go any further I think that it's important that I point out ...