Well yeah, you can't sit on your arse all day and expect to get rich. Lifes not about money anyway, only this crappy system forces that notion on you. Go to a desert island and hunt antelope for dinner. We got by for a few million years doing it, never hurt anyone.
University is overrated. The most successful people either dropped out of Uni or never went in the first place. Go against the flow, stick it to the man. The system is not there to help you, the cake is a lie.
You should be glad Uni kicked you out. Now you're free to be whatever you want to be...
Laptop batteries degrade over time - If they're a year or two old, they're completely useless. They need to be used regularly to keep them 'good' - If they are just left to drain, it really kills them.
http://www.youtube.com/watch?v=3sWb1iR2mzM
and
http://www.youtube.com/watch?v=D1Fcaro25Ek
and a newer one,
http://www.youtube.com/watch?v=j4SquyS44A4
= all you need.
So you're after something with similar power, but without the huge power drain or heat ... Personally I think you may be asking for too much ... two GPUs, a beefy multi-core CPU, and a huge lcd screen = one hell of a power drain, you'll have to wait for some fuel-cell-powered laptop.