I went for an upgrade, but I did a major clean-up of my system in SL before I did so, not least because free disk space was down to ~30GB (on a 160GB disk) so I needed to free some space anyway.
I removed all redundant apps - things I'd installed, tried once, then never again - and had a big cull of my data files (couple of GB in PSD and XCF - GIMP's equivalent of PSD - files).
Moved my two VMWare VM's to an external drive.
Uninstalled Xcode 4.0.x (need 4.1 for Lion anyway).
Zapped my iPhoto Library (only used it for testing when I was trying to decide between iPhoto and Aperture - went with Aperture).
Ran Clean My Mac to remove the dross - a staggering 27GB
although ~20GB of that was the iPod Photo Cache in Aperture that will get recreated in the future.
Ran iDefrag.
End result was free space went from ~30GB to >90GB
Install went smoothly and Lion is running fine (once Spotlight finished re-indexing)
I removed all redundant apps - things I'd installed, tried once, then never again - and had a big cull of my data files (couple of GB in PSD and XCF - GIMP's equivalent of PSD - files).
Moved my two VMWare VM's to an external drive.
Uninstalled Xcode 4.0.x (need 4.1 for Lion anyway).
Zapped my iPhoto Library (only used it for testing when I was trying to decide between iPhoto and Aperture - went with Aperture).
Ran Clean My Mac to remove the dross - a staggering 27GB
Ran iDefrag.
End result was free space went from ~30GB to >90GB
Install went smoothly and Lion is running fine (once Spotlight finished re-indexing)