A decent pair of plug wire pliers work for pulling the plug ends too. They have angled, padded jaws for gripping. Try rotating the plug end a little bit to break the seal. As stated earlier, removing the coil packs makes for a bit more working room.

It's equally important to get the plug ends seated when reinstalling. Takes a good push, you need to hear a solid snap as it locks into place. Oh, and each plug connects to a specific port on each coil pack. They are labeled "A" & "B" (I think...been a while) on the coil packs and each cylinder. Each plug is fired at a different time, so if you get them backwards the engine might run in an interesting manner...

'Bout 90 minutes on a 6 cylinder 210 for a decent DIYer.

- JimY