Do this, launch Activity Monitor and watch it all day and tell us how many times the CPU comes close to 100%.![]()
So your telling me a Pentium 4 will browse email and internet as fast as my quad core? even though doing those tasks will cause neither processor to reach 100% obviously not, the quad core will achieve it much faster. The extra speed will help, especially in the future and for gaming etc, however its not worth the $300 so unless you have that kind of money spare, dont spend it, however it is going to make a bigger difference than say the extra RAM(8GB).