Help desperartly needed

[Shiz]

Hey guys!my sister took our old computer to college, and we are getting a new one.

I need to know how many gb you think my nw hard drive should have. Is 80 gb good?

I also need to know if u think it should be above 2.0ghz, or if it should be just 2.0ghz.


AND most of all, i would like to know what brand of computer you think is the best and why, and which is the most expensive:

Dell
Compaq
Gateway
Hewlett Packard

Thanks so much!right now im at the library using their computer, and i thought you guys would be the best to ask.