hello need some help. Need a laptop for doing some work at home max amount £650 . Would like a normal size laptop 14-15 inch . Would just be used for normal stuff spreedsheets and ms word and power point ect . Bit of browsing the bay and stuff . Ive looked and looked and looked and so many lappy out there its a bit .com. Only thing i get real confused with windows 7 64 and windows 7 32. All the machines at work use windows xp pro 32 . So if i did some work on a windows 7 64 machine like some power point stuff would i be able to use it on a xp pro 32 bit machine if you know what i mean . One last thing would like some nice battery life . Dont want some thing thats going to die on me after 2- 3 hrs .