> I have two computers I'm considering going amd64 on: > > 1. My Thinkpad X61s (1GB RAM)
It appears that the wireless driver your Thinkpad requires > wpi0 at pci2 dev 0 function 0 "Intel PRO/Wireless 3945ABG" rev 0x02: apic 2 is not supported in OpenBSD/amd64. See http://www.openbsd.org/amd64.html