I tried 5 boots with the wireless on (really it's radio ON/OFF):
Once it stopped in the line: [ 13.078867] iwl3945: Detected Intel Wireless WiFi Link 3945ABG
Another time it stopped in the line: [ 13.831927] Synaptics Touchpad, model: 1, fw: 6.1, id: 0xa3a0b3, caps: 0xa04713/0x10008
Other times boot was normal.
No ethernet cable was connected and my BIOS hasn't any disable wireless option.
I tried 5 boots with the wireless on (really it's radio ON/OFF):
Once it stopped in the line: [ 13.078867] iwl3945: Detected Intel Wireless WiFi Link 3945ABG
Another time it stopped in the line: [ 13.831927] Synaptics Touchpad, model: 1, fw: 6.1, id: 0xa3a0b3, caps: 0xa04713/0x10008
Other times boot was normal.
No ethernet cable was connected and my BIOS hasn't any disable wireless option.
In attachment you have a complete normal boot.