|Ask your friend if he's ever used a Core 2 Duo. He'll probably adjust his glasses (if he wears 'em) and mumble "err, you know, my coffee's ready."|
Athlon X2, Pentium Dual-Core, Core 2 Duo, Core 2 Quad, Phenom II X2/X3/X4, Core i7--they're all leaps and bounds ahead of the P4.
Even the 5-watt dual-core Atoms in the latest netbooks are faster than P4s in multithreaded applications.
You DO NOT want a P4!!! :-)