Are you sure you are getting Dell Duo Core processor at 48K? Which model is it?
Also look for RAM, screen size, MoBo, HardDisk (SATA, RPM, capacity), CD/DVD Writer, OS (XP Prof or Home), bluetooth, how many USB, LAN, Wifi, Modem, etc.
What about
battery life and
weight? IMO, these 2 are very imp factors.
I have read some bad reviews about Dell and Lenovo recently. Even I am out to buy a lappy with a very decent budget. But just not sure about what to take. I am slowly moving towards Sony