Iwould like to know would I notice any change if Iwent forom my 3.2 that Ihave know to a3.2 extreme addition? thats an intel pentium 4

I can't believe you'd get enough of a performance boost to justify the expense-- if you were going from 2.6 to 3.4ext it might be worth it if you do huge video edits-- or mad gaming.

Here's a report comparing a 3.2 to a 3.2ext:

GamePC - Intel’s Stocking Stuffer : The Pentium 4 3.2 GHz Extreme Edition

if you read it... the numbers are quite similar.

They're calling cpu's extreme now?

I doubt it has anything worth the extra cost, as ih8bills has said

Yeah... its the same die with a larger cache, mostly.