Just sharing that it's unlikely you'll feel the difference with just what you've listed. I'm currently using the following for some various works.
Laptop 1. p3-600, 256MB
Laptops 2, 3, Athlon 64, 512MB
The MySQL server is running on the p3-600 and I do the initial VB6 app on the smaller laptop. It gives me some idea if there will be a performance issue.
At demo time, the p3-600 still holds the MySQL server, but the newer laptops make for a better presence during the demo.
Also holding other dev tools such a Palm's PODS and a collection of cross compilers, none of the machines seem to strain at all.
I'd lean to the laptop with the better screen and keyboard.
It is the first time I write in this forum.. but I feel you are so experienced and that is why I am here
I have now P4 2.8 Ghz with 1 GB RAM.. (Toshiba S1950-801)
I do work on VB.NET programming + SQL Server, Flash design, Photoshop and watching movies.. which means that I am very heavy user.
I am want to to upgrade.. so I would like to buy new laptop.. but I am wondering.. what is the difference in perfromance between Centrino and P4 with Hyperthreading technology in my case?
However, If I will go for Centrino then it will be Qosmio Toshiba.. if I would go for P4 with HT then I would go for Dell Inspiron XPS!