I seldom play computer game now. just use it for watching movies,search information, word, ppt etc. sometimes photoshop or coding. so I've decided to buy a 15" base model which is enough for me I think. But I am not sure about whether the upgrade 2.0 to 2.3 is worthwhile. Because the 2.0 GHz Crystalwell processor does not have Intel vPro technology and Transactional Synchronization Extensions New Instructions (IntelTSX-NI). (I have totally no idea about these two....) Can you tell me what are the two things for and are they important or worth to upgrade? Thanks.