Desktop: IBM PC-330 6571-xxx - The 486 variant of the Select-A-Bus IBM PC-330 series
Laptop: IBM ThinkPad 755CD - This was like a PC-330 stuffed into a laptop
I'm with Macroguy. My old PC XT 5160. IBM DOS 3.3 640K motherboard, CGA with my 5153 monitor, 360K 5.25 HH and 1.44 M floppy drives, and the trusty IBM WD25 20 Meg hard drive. Plus a Seagate ST01 SCSI contoller and an external 250 Meg drive in case the the WD25 isn't so trusty after all.