However, I am a little concerned about the library management comment you made. Can you please expand on that as I would like to understand that in more detail and to maybe get a beefier machine to cope.
Two problems:
1. Atom-based computers are SLOW. Don't kid yourself. We're talking between Pentium 2 and 3 era slow (slower in some places, faster in others). MC performs very well, even on old crappy hardware, but a slow machine is a slow machine. Many netbooks also have very slow hard drives and crappy RAM, further downgrading perceived performance.
I'd say if you can tolerate
any application on a netbook, it'll probably be MC. I can't really tolerate anything on mine except for light web browsing and playback of stuff. For example: Mobile Safari on my iPhone is a much faster browser than Google Chrome on the netbook. Booting takes forever. Installing things takes forever.
Some of that might be what you're used to, though... The machine I'm typing this on is a 2011 Macbook Pro with 8GB of RAM and a quad-core Sandy Bridge Core i7 CPU at 2.0GHz, and it is one of my slower daily-use machines.
2. More important than the performance issue, for me, would be the form factor issues, which is why I specifically mentioned Library Management. By "form factor" I mean:
* screen size and resolution. Many netbooks use 1024x600, which is terrible. Most applications expect 1024x768 at a minimum. While MC will work, I can't promise that all dialog boxes will fit on the screen correctly, and there may be annoyances (there certainly are with other applications). But, just tagging things with that low of a resolution would drive me nuts.
* small keyboard with sometimes non-standard key placement makes you crazy the 155th time you hit the up-arrow key instead of shift. I mistype on it constantly.
* crappy keyboard (my ASUS has one of the better keyboards of netbooks of that generation, and the flex is still annoying)
* the trackpad is tiny and somewhat useless - expect to use an external mouse most of the time or you are heading for RSI
So... Long story short, if you can at-all get an "ultraportable" class notebook instead of a netbook class notebook (something with a CULV Core 2 Duo or newer and something close to a "standard size" keyboard and resolution) you will be much happier with the machine over the long-term.