I removed my rocker cover last weekend to adjust my valve clearances. Its really quite easy:

* Remove the middle black plug cover (the bit with DOHC VTEC written on it)
* Pull off the breather hose (front corner near the throttle body)
* pull out the breather pipe (on the top about half way down on the intake side)
* undo bolts and pull out coil packs
* gently remove the wiring loom for the coil pack
* Undo the 5 (I think) silver bolts holding the rocker cover on
* I had to gently pry open the cover to "break the seal" with a large flat head screwdriver (very carefully so as not to scratch the block) and voila!!

 

Cheers Si - much appreciated!