I'll be making a video on a fairly simple OSX86 onto an AspireOne A150 using iAtkos. I must admit, I used an external DVD Reader/Writer and it made the whole process 10x easier. This guide is brilliant, but if you really can, try get your hands on a second hand external drive.
My setup is a bit ugly actually:
100GB NTFS - Windows XP & Wubi Ubuntu (convenience)
15-20GB HFS+ Journaled OS X Snow Leopard 10.6.4
Ethernet, Battery Readings (yep, I also get the power saving half speed when unplugged), USB Hotplugging, Double Finger Scrolling, QuartzGL etc, External Speaker.
SD Reader(s), Microphone, VGA-Out (will try tonight).
Wireless, Sleep, Hibernate...
Feel free to ask something that I may not have mentioned. I am not connected via wired, but I am using a USB Wireless Card which I carry around with me all the time. The standard wireless in this machine is only average in my opinion, so it definitely improves it. Installed the full office suite last night and it's running great.
The best way to get up to 10.6.4 is to basically install OSX with Iatkos using the EFI String (i also used Natit, but apparently that will make no difference), ae27 snow gma drivers, VoodooHDA, etc etc, all the standards. Remember PS2 keyboard and USBFix's etc. Didn't use the sleep enabler, doubt it will work. Once you've booted. Do a straight update to 10.6.4. Reboot. First time it reboots, it won't load the kexts. Run a repair permissions and refresh and then reload and it should be fine.
What is strange is that sometimes it reads 10.6.4 in the About this Mac. Other times it reads the codename. Still its running smooth and it is definitely worth going for if you are willing to be patient. Its taken me a few hours to get it right, but now I have, I doubt I will reinstall!