[Wilson01S]

If your cam covers are leaking and you want to remove, clean, and reseal (there is no gasket- its a sealant) you will need a cam holding tool to hold the camshafts to the head as you remove the cover. The cam cover holds the cams down and as you remove it the valve spring pressure will try to push the cams out of the head and you could risk snapping them.

Do a search for "cam holding tool" and you will see the Porsche tool, and several home made tools. I made a tool myself following some specs I found on this site and it worked perfect.

Also, like truegear said I would definitely replace the spark plug tubes while you are in there.