Debian Wheezy freezing

[William Ivanski <william.ivanski@gmail.com>]

Hi  everybody,

I have a Lenovo laptop, with CPU Intel Core i5, which I use to work.
I installed Debian Wheezy and the system freezes randomly. No response 
to keyboard or mouse clicks, just mouse moves. Needed to restart all the 
times.

I searched a lot about this problem, and many people suggest the 
installation of a newer kernel (current is 3.2).
Currently, on kernel.org, stable release is 3.7.5.

I never compiled a kernel before, so I am afraid of the problems it 
might create. I'm worried about virtualbox, which I installed through 
aptitude.
I'm also considering upgrade to Debian unstable branch. It have a kernel 
newer than 3.2, doesn't it?

So my questions are:

1) Which is better? Keep Debian Wheezy and compile a new kernel, or 
upgrade to Debian Sid?
2) Have you guys compiled a kernel before? How it was? Can you provide 
me a good tutorial about it?

Any help will be much appreciated.

Regards,
Will