sony VGN-N50HB in very good condtion to sell or exchange

2 Photossony VGN-N50HB in very good condtion to sell or exchange
sony VGN-N50HB in very good condtion bought 1400USD$ from japan and want to sell for 2800rmb ,
memory is upgrade to 2GB and just install new battry , so it can use for two hours with battry
windows 7 ultimate with english and chinese installed .
any one interested let me know