I started by installing Mini-Me 2009.1. Then did full update. Went OK.
Tried to update at that point to KDE4 using Tex's instructions but had to reboot first. Even though the network showed as still connected, Synaptic couldn't see it, even after an X-system restart. Once I rebooted, update to KDE4 went ahead just fine.
After a reboot, got into KDE4, added testing and upgraded to full testing. This brought in the 2.6.32 kernel but not the headers, which I had to do separately. At one point, I could not get into the desktop anymore, kept throwing me back to the login screen.
I got into the failsafe desktop, and tried to run kwin. The error I got was a missing library libdrm.so.2 - I ran synaptic, and libdrm2 was installed! I re-installed it, tried to run kwin again, this time it was successful. Something obviously went wrong somewhere along the line.
Had to go into PCC to make dkms run on startup. Installed dkms-nvidia-current which uses version 190, which works well with my card.
Some of the utility scripts do not work, because they demand that the kernel name ends with "texn" whereas the testing kernels end with "pclosn". Had to do localisation through control centre, had to add the openoffice repo to install OOo.
Once all this was done, it appears to be working nicely. Had to add the apps I wanted, so far no further bugs. Runs OK, is it seriously faster? Not sure about that.
A few "ease of use" bugs around then, but once sorted out, seems very good.
I would like to try it on my Samsung NC10, but not sure having read the stuff about Intel graphics drivers.