Scotty knows his legends, it seems.
It looks like we've gotten the main issues between the new cintiq and my computer under control. One of the things that seems to have helped a lot was upgrading Photoshop. I was running Photoshop CS. I'm now running CS6. This newer version is much faster than CS - from stylus reaction to saving. I keep checking to make sure it actually saves. I'm used to Photoshop taking nearly a minute to save a page. It now takes maybe two seconds.
Here's a shot of the new Photoshop. The large screen and the new interface are still a little daunting.
I'll get used to this all eventually, it's just a lot of change all at once.