thanks,here i have another question:
considering my budget and needs i ended up the search to these two models:
1-VGN-B100B08/Dothan 725 1.6 GHz/512 MB/60 GB/DVD-CDRW/56K/NIC/Bluetooth/14.1'' XGA (1024x768)TFT/Win XP Pro SP2
pros:large screen good for spreadsheets,enough battery life,compact and light,(i must saye i myself like it more).
cons:a little big(than the s),lack of dvd-rw,lack of so many reviews and good descriptions on the web(very important cause it can...