Yser,
Here is a comparison between the older VPCS117GG and the latest VPCS137GG
http://www.sony.co.za/product/Compa...=hp_en_ZA_i&models=VPCS137GG&models=VPCS117GG
The Fotocats website does not have a published price, here is the link to the page advertising the VPCS137GG
http://www.catsdigital.co.za/sony-v...-i5-560m-processor-up-to-3-20-ghz-black-.html
PM me for the email address of the Sony VAIO SA Product Manager, you can get in touch with him to get an idea of pricing. Alternatively Rectron stocks them too, if you have an account or know someone who does you can ring them up and request a price.
It seems there are not many differences between the models, the most apparent is faster i5 processor. IMO the most important factor (given there is not a huge difference in price) is the warranty, with a new machine you get a warranty, will you be getting one with the VPCS117GG?
Hope this helps. Whichever VAIO you own, you will always be happy...they are fantastic machines.
Rudi
PS you can buy a new VPCS137GG (same model as the one sold in SA stores) from SonyStyle in Hong Kong for HK$9,480, which is about R8,324 at current exchange rates, if you are planning a trip that way soon or know someone that can buy it for you. PM me for the address in Kowloon of the SonyStyle shop. Believe me, you will never ever seen such am impressive selection of Sony products and the service is awesome.