Question : Problem: T2400 vs T2500

I are planing to buy a laptop, and I wonder if I should upgrade from T2400 to T2500 Intel Core Duo Prosessor or not.

Spesification on this laptop is:

Prossesor: Intel Core Duo Prosessor T2400 1.83GHz 2x2MB cache, 667MHz FSB, 65nm, BOXED
Memory:   2x A-Data 1GB DDR2 SO-DIMM PC5300 667Mhz CL 5, 200pins
Graphic:    nVidia GeForce Go 7400 256MB PCI Express
Storage:   Hitachi 2.5" 100GB Travelstar 5K100SATA SATA, 5400 RPM, 9.5mm, 8MB cache

I wil use this machine mainly to work with: flash8, photoshop, Illustrator, aftereffects and premier

And the question is, wil I note some difrent if I upgrade to T2500, I understand it's difrent, but are the big difrent??
Later I wil use a stationary machine to the biggest work. And use Laptop mostly to programing and desingwork in flash and illustrator. So therefore I try to save some monney here. :)

I are thankful for some serius answeres :) sorry for my Norwegian inspired english ",)

Answer : Problem: T2400 vs T2500

At these speeds, Ram will be much more imporatnt that CPU speed.

Normal perception can show a difference of the CPU doubles in speed. Otherwise you will probably not see much difference.
Concentrate on more ram and the BEST VGA card.

I hope this helps !