laptop notebook computers

Recommended brands of laptops?
I am confined to bed due to illness, and I want a laptop that is literally on my knees, without being heavy, too hot to hold in my lap, or have a screen and makes the top-heavy. I want something light enough, but portability is not a problem, because I did not get out much. By the same token, I do not need a long battery life, I think you can connect to an outlet. Mainly I write and edit Word documents, watch DVDs, download Songs and Videos. Therefore, you must have a good picture and sound quality (and a headphone jack). And, preferably, a keyboard full size. Also surf the web and send e-mails. Please let me know if you can recommend brands that can do all these things (or if not with whom have had a bad experience). THANK YOU!
Dell, Lenovo, Sony Vaio, HP.
Mac & PC Computer Tips : How to Choose a Laptop or Notebook Computer