Dell Inspiron 531S:
Installed 64-bit, everything I've tested works perfectly.
Dell Latitude E6400:
Installed 64-bit, everything I've tested works perfectly.
Dell Inspiron 546:
+Airlink 101 wireless PCI card
Installed 64-bit, everything I've tested works perfectly.
(Side note: it took me several hours to get the wireless card
working in Windows 7)
Toshiba (forgot the model number):
I attempted an update of a friend's laptop Friday night and learned
that the system crashes unless I use "nomodeset" as a kernel option.
The Intel i915 driver is the offending code. I gathered some
information and filed a bugzilla report, but haven't updated the laptop
yet. I did boot the LiveCD with "nomodeset" and everything else seemed
fine.