NOTE: Perhaps this is obvious to many of you, but I was scratching my head for a few hours trying to figure out how to follow the instructions for the "more detailed" methods before finding this solution. I rooted my Nexus the day I bought it but at the time did not install CWM. I wanted to install CWM this morning so that I could proceed with making backups and begin flashing custom ROMs but the link in the stickied All Things Root Guide takes you to an XDA page which seems to incorporate the rooting process with the CWM install and leaves out some of the more basic steps (I'm not a noob, but I pale in comparison to those who figure this stuff out for us!). Instead, I followed several links to wind up on a different XDA page, Flashing Your First Galaxy Nexus ROM, which is very detailed and breaks each step out. Under step 5, which details how to install CWM, note 1 indicates that you can bypass the "hard" method by installing the ROM Manager app from the market and have it flash CWM automatically. After that, I used root explorer to change the name of recovery-from-boot.p (in system/) to recovery-from-boot.p.bak as mentioned in another thread (I learned long ago never to delete anything!). Then I booted into CWM recovery (power off, then volume up/down plus power), pressed volume up twice to get to "boot into recovery" and pressed the power button which took me into CWM's recovery menu (success!). From there it was easy to make my first backup and dig into custom ROMs! This method (assuming you have previously unlocked the phone's boot loader) allows me to bypass reconnecting to a PC and using the SDK for loading CWM (which is preferable since I use primarily a Mac). Perhaps it will help someone else who is scratching their head trying to figure out how to get CWM loaded without staring at an android with a red triangle over his opened belly! P.S. Support the devs who come up with the apps to make this so much easier by purchasing the premium copies of apps like ROMManager and RootExpolorer.