Hp pavilion dm4 or hp envy 14? which one is better?

I'm havin a hard tym narrowin down 2 either one. I'll b joinin a law college 4 a 5 yr course n i need a laptop wich helps me thruout. Here r a few specifications dat i need: light weightd(less than 2 kg preferably), sturdy n solid, enuf spacong betwn keyboard keys, backlit keyboard, min. 2 USB connections and a connection 2 n hdmi, good clarity and resolution, good audio, a DVD burner, a card reader,inbuilt wifi and bluetooth, a blu ray drive preferably, a longer battery lyf, a good memory storage and enough disk space. should have a slick look and should be an "easy-to-carry" one. i'm open 2 suggestions for laptops other than these. and yea, my budget is somewhere between US $800 to $1000...