I talked with Gaurav Sood [gasood@cisco.com] and got a decent answer.
# configure terminal
(config) # ip dhcp pool uniquePoolName
(dhcp-config) # host 192.168.75.5 255.255.255.0
(dhcp-config) # client-identifier 0100.14BF1CFF.28 # (MAC address is 00:14:BF:1C:FF:28)
(dhcp-config) # exit
(config) # exit
# show run | sec ip dhcp pool
ip dhcp pool inside
import all
network 192.168.75.0 255.255.255.0
default-router 192.168.75.1
ip dhcp pool downstairs
host 192.168.75.5 255.255.255.0
client-identifier 0100.14bf.1cff.28
# write mem
NOTES:
1) You need a unique pool name for each assignment (minor detail left out of the documentation).
2) The 192.168.75.5 and 255.255.255.0 can be adjusted to the VLAN you want it on.