its not clear if your desktops/ laptops already have ethernet ports
so you will have to give model #'s for the pcs


if your laptops don't have ethernet ports you can get usb wireless adapters or PCMCIA cards with can either be ethernet or wireless...

a router/ switch to connect all 3 computers " can also be a modem router"

3 cat 5 cables ...

do to either d-link, netgear linksys, etc and they will have diagrams of how you can set upa network and what you need



Dimension 8300,
P4 2.80GHz 800MHz w/HT
1GB PC3200
Sparkle 6600GT oc
Creative SB Audigy 2 ZS (retail)
Seagate SATA 120,160, USB2 external 200GB
NEC DVD+RW ND-2100AD, Pioneer 16x DVD+/-RW DL DVR-109, HP usb CD-Writer+ 8200
15inch LCD
D-link DSL-G604T Router & D-link DWL-G122 wireless adapter
HP deskjet 3550
BearPaw 2400TA scanner
USB 2.0 tv tuner, Wacom graphire3 4x5inch, PCI Cooler | 80mm hdd fan
Benchmarks 3dmark03 8446...3dmark05 3498..3dmark06 1821...PCmark05 3448

How do I know if the laptops have ethernet ports?

look in device manager
under networks
or give the model number of your pcs

thank you