I am looking at getting an ultraportable laptop off of ebay for $500-600. I have been looking ad I think some might be too slow. All I want to do is email, office and internet for when i am traveling. One has an 850mhz cursoe and 128mb RAM the other has a 700mhz cruso and 128mb RAM. Do you think the slower one will be enough to do want I want or is it going to be laggy and take for ever to load programs. I am think about putting a 7k60 in it because it really sped up my other notebook from its old 4200rpm.