If your replacing plugs, replace the coils. They are only $200 and if #4 or 8 coils go out later, you will be hating yourself for not replacing them when you did the plugs. They are a pain to get to.

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Taz... My favorite BMW so far.
Sport, Cold weather, Logic 7

19" Miro M6 Wheels w/competition stems
MGP Claiper Covers (BMW)
Dension Gateway 500 and Audio Video Router
AC Schnitzer pedals
Carbon Fiber Di-Noc Trim
5W White Angel Eyes
Polk tweeters