The stress of getting a replacement lappie

My lappie (named Pacqui) has served me well for almost 4 years now. However, the past days, he has been having tantrums. Either he presses keys on its own (when not needed) or the keys do not function (when i deliberately press it). The screen goes white when opened at a certain angle too.

Our working relationship just can't continue like this anymore. That is why I went window shopping for a replacement lappie.

I have to consider a lot of things. Size, performance, look and cost!

List shortened to this with considerations:

Macbook Air - cool, good-looking, small, compact, long battery life, quick start-up, expensive, not as powerful
Macbook Pro - cool, powerful, expensive, good-looking, nice graphics card and processor (i see myself working on videos again with this thing!)
Acer Timeline X - thin, compact, light, long battery life, midrange cost
HP Pavillion G4 - powerful, relatively affordable, not as pretty as Macbook and Acer Timeline X,
Sony Vaio Y - compact, thin and small, no optical drive, not as powerful

Went home without anything bought. Will just think things over. Or wait until I am sooooo rich i can just get all. Stress!