Targus USB Port Replicator $50

This product sells for $120. I used it once then I changed laptops and got one with a docking station.
Save money and buy it for $55

Connector Types:
- (1) Monitor/Video Port (15 pin D-Sub)
- (1) 10/100 Base-T Ethernet (RJ-45) Jack
- (1) Serial Port
- (1) Stereo Audio-Out Jack (3.5 mm for speakers or headphone)
- (1) Mono Audio-In Jack (3.5mm for microphone)
- (4) Hi-Speed USB 2.0 Ports (two Power Ports and two standard USB ports both are backward compatible with USB 1.1 devices and support transfers up to 480Mbps)

http://www.targus.com/us/product_details.asp?sku=ACP50US