IBM ThinkPad T61
Intel 4965 WiFi
If you have the Intel 4965 NIC, simply install iwlwifi-4965-ucode, run depmod, and run "modprobe iwl4965" to activate. For wpa_supplicant, use the WEXT driver, not the deprecated ipw200.
The latest Kismet runs well on the iwl4965, but occasionally has problems changing the mode back to Managed from Monitor.
If you have the AR5212 802.11abg NIC all you need is madwifi. Install it, and the kernel module is ath_pci.
Works great with the settings provided in the Pacman output
Install acpi, acpid. Add acpid to the daemons list. Load module thinkpad_acpi. You might have to blacklist asus_acpi/toshiba_acpi, it doesn't hurt anyway. It should work, and is able to provide accurate information to such programs as Conky and GKrellm, as well as the GNOME battery monitor.
The regular way works fine.
Suspend/Resume technically worked out of the box for me, however resuming took about 2+ minutes, while my screen stayed off and my speaker beeped 2-3 times. Sometimes it hung up too. These changes seemed to have worked for me and where found here. Remember to remove the boot parameters acpi_sleep=s3_bios or acpi_sleep=s3_mode if you have them, they do not seem to be needed anymore and may cause the system to crash on resume.
See Webcam Setup.