I've posted plenty of motherboards & HDDs in standard bubble-wrap from the local shop, never had any problem at all there.
Static is overrated- Yes, there is the possibility of it killing things, but this is neglibile at best. Whats far more likely to kill the board is inadequate packaging for the post, as its going to be thrown around by the post office.
-Leezer-
Over rated!!!
You may think that taking Anti Static Precautions sound like being a little paranoid and over precautious but have you ever had a shock when touching something metal when static is discharged? Now imagine what that will do to your nice new Q6600. Are you really going to take it to chance?
You must discharge any static build up before handling components.
One thing to bear in mind is that if a device receives an ESD charge, it might not fail immediately. This is the fact that the effects of ESD are not felt right away but over time get worse. This is known as hidden ESD.
Dust and debris inside the case can also cause the hidden ESD effect. The dust holds a small electric charge which eventually begin to degrade the performance of internal components. Make sure the inside of your case is cleaned periodically using a vacuum (use plastic attachments only) and a compressed air can to remove the dust.
There are a number of gadgets and devices that can help eliminate the effects of ESD whilst maintain your PC:
ESD wrist straps
Anti-static wrist straps are designed to filter out static and discharge static safely. A 1 mega-ohm cable is connected from you to the an earth ground, usually the earth pin on a normal wall socket. Make sure that only the earth plug is connected. The other two pins should be plastic.
Anti-Static Mat
Mats work the same way as the wrist straps. Components are placed on the mat and static safely discharged. The mat is also attached to earth ground as above.
Anti-Static Spray
Supposedly removes static effectively from clothing but not as affective as above.
Anti-Static bags
Used for long term storage for anti-static precautions. When working with components, leave in bag for as long as possible until needed. DO NOT USE STANDARD BUBBLE WRAP!!