Thanks to a great guide by mechdrew, I was able to install OSX on my Dell Mini (Inspiron 910). And after a couple of days of troubleshooting e.g. couldn’t mount .dmg files, codec overrun issues etc., I’m writing this post from my Dell Mini running 10.5.7!

Some pointers for those willing to try this:

• Follow the guide USB Installation via Mac (this is the guide I used).
• For any issues with .dmg files not mounting, or issues with USB sticks, drives etc., see here.
• Don’t use the Mac’s Software update to update to the latest version of OSX

The key to fixing the USB issues etc., is to update to 10.5.7 or 10.5.8 right after you’ve installed OSX from your retail disc. How to do this is in the guide.

And if you run into “codec overrun” issues, it could be to do with your router’s firewall and how it’s not downloading all packets of data required for each installation file. To fix this disable SPI. This worked for me :)