Neweeg has the IOGEAR GCS22u 2-Port USB KVM Switch w/built-in cables for $20 with free shipping.
Features:
- One USB keyboard, USB mouse, and VGA monitor control two computers
- Max resolution: 2048 x 1536, DDC2B
- Plug-n-Play monitor support
- 4' long molded-in cables to simplify setup
- Compact design features two attached KVM (USB and VGA) cables
- Compatible with PC, MAC and SUN operating platforms
- Supports Windows 2000 or higher, Mac OS 9.0 or higher, Sun Solaris 9 or higher
- No software drivers required - simply connect the cables to the computers
- Computer selection via 6 ft remote controller cable that can be placed on your desk for easy reach
- Full Mac keyboard support
- Supports programmable mice
- No power adapter required
Newegg.com - IOGEAR GCS22u 2-Port USB KVM Switch w/built-in cables - KVM Switches
IOGEAR GCS22u 2-Port USB KVM Switch w/built-in cables $20 + FS 
