...useful to him? I would also appreciate if you answered in details..like mentioning the best processor..RAm...and stuff like these because I have no experience at all..

I'd recommend that you buy the cheapest one you can (after all laptops are easily stolen/broken at university).

Any one under £400 will do any job you need http://direct.tesco.com/q/N.1999724/Nr.99.aspx?Ns=P_SORT_Price&btnResultSort.x=25&btnR esultSort.y=14

http://tinyurl.com/5lm2g4

here this is for you, comes with a carrying case
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=140257354604&_trksid=p 3907.m32&_trkparms=tab%3DSelling