suggest really gud laptop for technical stuff

can someone please suggest me a good laptop.

I need it for education purpose.

>>efficient for multi-programming (large number of prog softwares would be there..)

>>fast processing speed

>>good battery life

>>no overheating

>>less weight if possible.

i'm confused in these ones..

when i search on google..all laptop looks same..

plz help me..

-akki

finally i got one reply.. :P