iridium

Hello people, am sure someone out there will know better then me. Now my mate has recommended that I buy a set of Iridium NGK Spark Plugs for my car; 2002 318ci SE Coupe (E46). Now could anybody tell me if they would make any difference, theyre supposeably far better then any other spark plugs...

Went an picked up the new engine and box this morning 2.3i thought id give it a service and found bog standard plugs, cut to the Chase anyone use iridiums problem free, also is there a tip on how to reset the service indicator without paying to do so? Thanks in advance.

e46 318i2000 My cars due a service now and i was hopin to change my plugs over to the new iridium plugs from ngk. I rang my local supplier today and he asked me to get the plug number that suits my engine has anyone used these plugs before, or know which ones i should be orderin for my engine??????