KVM Switch   

Avocent Price
SwitchView IC, 2 Port 8' PS/2 keyboard + mouse, 15 pin VGA (SVM200) $ 59
SwitchView 100 Series Desktop 2 ports KVM Switch, audio, 2 USB ports, 15 pin HD D-Sub, including 4 x 6' keyboad, mouse + video cable. Audio cable kit (2SV120BND1) $ 75
SwitchView 100 Series Desktop 4 ports KVM Switch, audio, 4 USB ports, 15 pin HD D-Sub, including 2 x 6' keyboad, mouse + video cable. Audio cable kit (4SV120BND1) $ 115
6' or 9' Cable Kit PS/2 keyboard, USB mouse (PS/2 adapter included) and 15 pin Video (CBL0029) 6' - $ 29
9' - $ 39

Belkin Price
Belkin Flip 2 ports PS/2 KVM Switch with Audio (F1DG102P) $ 55
Belkin Flip 2 ports USB KVM Switch with 6' remote control cable (F1DF102U) $ 59
OmniView CA Series 4 Port PS/2, 4 x 6' keyboard / mouse / video cable kit (F1DJ104P-B) $ 85
SOHO 4 Port USB Audio KVM Switch (F1DS104L) $ 199

DLink Price
6' KVM VGA Cable Kit with PS/2 connections  (DKVM-CB6) $ 25
2 Port PS/2 KVM Switch with Audio Support, control 2 computers using a single monitor, Listen to music from 1 computer while working on another, no drivers to install and nothing to configure.(KVM-121) $ 45
2 Port USB KVM Switch with Audio Support, control 2 computers using a single monitor, Listen to music from 1 system while working on another, no Drivers to install and nothing to configure. (KVM-221) $ 59
8 Port KVM, 2 cables sets included, 1 set for Cascade or KVM, total of 3 set.(DKVM-8E) $ 229

Linksys Price
ProConnect 2 Port PS/2 KVM Switch (KVM2KIT) $ 65