Thank you craigevil, nice link, but...
1.- Will I have disc enough for debian and some other apps in just 8Gb? Even so, I'll loss any chance to get back to Xandros if somethig goes wrong

2.- Will my EeePC boot in just 30-35 seconds? I program some apps to hurry up my kid, update my to-do & purchase lists,... I can't wait 1 or 2 minutes
3.- Will all hardware (wifi, webcam, 3xUSB, card reader, bluetooth) work fine?
4.- What about Easy Peasy vs. DebianEeePC?
Thanx again
