I utkarsh would like to make you notice about some useful information about the laptopswhich you are going to buy for your personnel use. Don’t invest your large amount of money on this as there life is only for 7-8 years.Moreover go for latest and high performance processors by checking there reviews on internet. For best configuration for this present time.
I would suggest you to go for Core2 duo T 8100 processor, with more than 2gb of RAM atleast with a hard disk capacity of 320gb.If u wanna upgrade ur RAM or Hard disk, U can easily go for that.Try for ATI- catalyst LCD, dont waste your money in buying Nvidia Graphics or Ge-force.. Ya, I must say you should go for atleast 1gb graphic card.
Rest all the supports like Bluetooth, card reader, and disk drive, etc. are easily available with such configuration.