Hello Phil, thanks for the hints.
The World is already taken and not by me, otherwise it would work fine, without bugs
I was tired of my old laptop, a Pavilion dv6 core i7 8GB RAM HD 7200 with LXDE as Host, but it gets really slow and hot with 2 or 3 Virtual machines. In a couple of minutes it almost burn my left hand even with a big fan underneath. The Win 7 VM, that I need for special development application software not available in Linux, is very hungry in resources.
So now with this desktop I hope will solve the problem, I am still in doubt of which to use LXDE or XFCE for Host. Probably, like GermanTux said, I will use LXDE, I was waiting for the 64 bits version, but I think it is going to take time. Hope I will not spent more money in hardware/windows for the next 3 years. I do not want to waste my money in more windows licenses, but PC factories bundle with it.
I plan to encrypt the SSD but I have many issues for this weekend, probably for monday. I would like to know if it is a really a "speed demon" like Intel states. I will allow my kid to play games, booting from Win 7 in the original 5400 HD. I will boot from the SSD with Linux, for my work.