I have the A100 that you listed and it's brilliant, very solid, fast and quiet pretty much does everything you want it to do.
It's a shame you didn't pick the A100 but at least an Asus is better than an Acer or Dell
To be honest i had my heart set on the A100 until i found out it was exclusive to Harvey Norman and when they told me a new CPU had been released. Judging by most comments on here and those of my friends i think i've made the right decision with the Asus. Time will tell...