That article suggests that Ubuntu 9.0.4 would work very nicely - wonder whether the bugs have been ironed out of the new one yet?
I know what you mean about potential wifi (and indeed any other) problems - off-putting.
But it needn't be. All the major distros have excellent assistance available on their forums, and your queries will often be responded to within hours.
Additionally, I find it's really unusual to encounter something that nobody has already successfully resolved, and that google/searching forums often provides the answers to any difficulties encountered.
As a result, problem-solving becomes more entertaining and intriguing than infuriating. Some distros are more demanding than others. Antix nearly drove me scatty, but its incredibly helpful forum got me up and running, and taught me a lot of really useful stuff.
It's definitely worth trying out live CDs to get an indication of how easily you'll get a specific distro to make friends with your hardware. Presumably the 4211 doesn't have a built in optical drive - I assume you would boot off a live CD in an external drive.
Another approach is to boot off USB flash drives - rather more compact than a USB optical drive. Have a look at "Unetbootin":
http://unetbootin.sourceforge.net/
It's a very useful little program that allows one to install the live CD iso to a flash drive rather than a CD or DVD. (I'd imagine your netbook would boot happily from a flash drive.)
Simply keep a folder on your hard drive with all the isos of the distros you want to try out, and copy whichever one is required to your flash drive. Works a treat.
This gives one a chance to mess around with various distros before committing to an install. (See ej's comments at the very start of this thread for more.)
As far as the actual installation is concerned, modern Linux distros are very straightforward to install - simply follow the on-screen instructions, install it, update it and you're ready to go - in far less time than it takes to install a typical Windows OS, as far as I can see.
Ubuntu's great, especially once you add the "medibuntu" repository to deal with non-free drivers and the like (a problem in some countries, apparently.) You might like to consider Mint. Whilst it's essentially Ubuntu, it's slightly less fanatically conscientious about avoiding non-free drivers, and remains my personal favourite. Again, simply experiment with live CDs or USB drives.
I fully agree with doing a fair amount of reading around first, but I've found that the actual installation is invariably a lot simpler than implied in the various articles I've swotted up from first. My own preference now is to get an idea of any special considerations from what I can find on the internet, then to just get on and install the blessed thing. It's when things go wrong that links like yours in #640 suddenly make sense - "Oh, thats what he meant, and this is how he solved it."
It follows that things are much easier if you have a second computer at hand to seek assistance - although you should also be able to get on-line from your live CD.
While you wait for one of the experts to refer you to something a little more structured, might I offer a couple of preparatory suggestions?
Linux is useful and safe. It is also fun, and more than repays the effort involved in overcoming difficulties. Even though you may cuss and throw things from time to time.
It's worth trying a variety of distros (live CD/USB flash drive) to decide which one both you and your computer like best.
Dual booting is an excellent idea. Although surprisingly easy, it is not without its hazards, especially where partitioning is concerned. This makes it vital to back up all your data first, and to ensure that reinstallation media/product ID numbers etc for your OS and all your apps are to hand - just in case you manage to nuke your installation.
I've a horrible suspicion your 4211 relies on a recovery partition rather than recovery discs. It would do no harm to image the whole thing to another hard drive (see grumpy-cook's guide to Macrium on his "Me" page, for instance.)
Plan your partitioning in advance. I find the Ubuntu/Mint partitioning tool a little confusing - just the way my brain is wired, I suppose - worth googling a few tutorials first. My own preference, when dual booting, is to shrink the Windows partition (after a thorough defrag), check that XP or whatever is still happy, then to prepare my planned partitions on the remaining space, using GParted. I always have to think a bit then about how to tell the Mint installer just what to put where.
I've very little aptitude for computing matters (an aptitude test back in the eighties put me - just - in the top - erm - 95% of the population for potential programming skills. Nice to know there were 5% worse than me.) Yet I manage to get all sorts of distros working on all sorts of computers. It also puts a heck of a lot more fun into what is, after all, essentially just a useful appliance.
So I'm pretty much hooked.