If you haven't already committed to Ubuntu you might give Fedora a try...you can put Fedora on a flash drive with LiveUSB Creator (in Windows) then boot off the flash drive and you can evaluate Fedora Linux that way. You can also reserve space on the flash drive as persistent so you don't lose everything when you reboot. If you like it you can do a more permanent install.
3.2.*Preparing a USB flash drive as an installation source
Thanks! I'll have to check that out too, but right now, I'm waist deep in this and I'm a persistent sob
Bookmarked your post for later reference