Thanks for such a detailed explanation,
I was almost finalizing on AMD Sempron, Thanks Risherz for letting me know that "Semprons are like Intel Celeron chips" I was avoiding Celerons and was about to buy similar chip.

William I would really love to get Mac but, I want this laptop for work as well as personal use and I am heavy user of MS office so I have to go with HP, since I am not a heavy gamer, and dont do any video editing I will go with AMD Turion's or Athlons.

Now I am confused which one to choose Turion or Athlon what is the difference between these two chips.

Thanks again for all your help.