Just in case you need to know.....here is the password recovery procedure for the Cisco Catalyst 3550, 3560, and 3750 Series Layer 3 switches. Unlike the 2500 and 2600 series of routers, these have a 'mode' button on the front along with some cute status LEDs.

1. Attach a terminal or PC with terminal emulation software. Set up as speed 9600, 8 bits, no parity bits and 1 stop bit.
2. Remove the power cord from the router
3. While pressing down on the 'mode' button, power up the router. Keep the mode button pressed down until the SYST LED stays solid green. When you release the mode button the SYST LED will start flashing.
4. You will then see:

The system has been interrupted prior to initializing the flash file system to finish  loading the operating system software:  flash_init load_helper boot

5. At the prompt enter: load_helper
6. Then type ren flash:config.text config.old 
7. 

pressed down until the SYST LED stays solid green. When you release the mode button the SYST LED will start flashing.
4. You will then see: