Preparing for Lion

I am getting ready for Mac OS X 10.7, which should be available tomorrow for $30. But how should one prepare for it. First off, back up your entire computer to an external drive. Easy with Time Machine. But since this is the first major OS release with out media, what next? How do you go about doing the coveted clean install? Well, this is the time consuming part.
First off, I am going to go get my 10.6 factory restore discs for my machine. After I know I have them, I need to de-authorize every damn program I own (Adobe, iTunes, etc.) Then, the hard part…Clean install on a fresh hard drive. But wait, there is more. My install discs are 10.6.2, and App store isn’t there. Crap. I’ll have to do a 10.6.8 combo update. So after all that, I’ll re-authorize the computer, and download 10.7 from the App store. Now I know with the preview release there was a way to make a bootable DVD or USB stick, but I’m not ready to do that yet.
Well anyway, after all this time, it’s time to put everything back into the home folder. Re-install all my apps, and pray that the good ones work in Lion, and hope that Intuit has really screwed me over by writing crappy code with QuickBooks. Which brings me to my next task. That’s buying a new external HD and putting 10.6.8 on it to run the shit that I need that wont work in 10.7.
I’m sure there are other ways of doing this, but I like my convoluted way. Also I am doing this on the weekend so I am not up until 4 am Thursday futzing around with this.