It's pretty much as you said, but I would do a fresh install, versus an upgrade.
It's usually a good idea when the changes a whole number.
I initially did an upgrade and had issues, but once I did a fresh install of SL, it was flawless.
Mini 9 | OS X 10.6.7 | NBI 20100616212351| BIOS 05 | 32 GB Runcore | 2 GIGS RAM
10V | OS X 10.6.7 | NBI 20100616212351 |BIOS 06|160 GB|1 GIG RAM| 6 Cell Dell Battery
Back up Mini 9| OS X 10.6.7| NBI 20100616212351| BIOS 05 | 32 GB SuperTalent | 2 GIGS RAM