Yesterday i saw the news, Dell's Latitude E6510 and E6410 have been coming out.
Dell released 2 new business laptop in the first quarter of the year 2010.

i had been using Dell D600 laptop computer for 3 years, it was a good stable computer suit for business.

D520 is a economic business laptop that popular during 2005-2007.12, it has low price, usually only 9000 RMB with 3 years warranty and some extra. it based on intel 945GM chipset + Core Duo CPU. Intel Centrino III platform.