Some will have it. You will need a gateway router to use the network. Some printers will have built-in NICs to be able to do this, while others have USB. You'll need to get an appropriate router for either case.
XP 2500+ Barton @ email@example.com
Thermaltake Smartfan II
2x512MB Corsair PC3200
BBA 9700 Pro AIW
2x80GB 7200RPM Maxtor