I purchased a Dell Inspiron N4010(Free DOS, Core i3, 3GB RAM, 320GB HD)from a local store in allahabad on 10th March 2011 and since then I am using the same laptop.
No heating issues, even the original battery is not replaced yet(My service tag number: 5MY28BS). If you have any doubt you can check.
I am very happy with the performance, backup and most important the on-site warranty provided by dell. Still my battery is providing a backup of around 80 minutes. Highly satisfied with the product. I buyed it at 32700/- .Yes its too high price for now but I buyed in 2011.