I've tried a few times to get OSX running under Windows using VMWare, but always had problems. I finally managed to get it running, and usable by following this guide: http://www.sysprobs.com/easily-run-mac-os-x-10-8-mountain-lion-retail-on-pc-with-vmware-image
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Now I just need to decide what I'm going to do with a Mac installation.
Make music, do video editing, make iPhone software...
Any reason you did not go for a native install? It's not much harder than a vm one.
What was the Host OS?
running under Windows
I know I read it, I don't know why I forgot it. 
Probably because my brain could not fathom something so unholy as MacOS X on Windows.
Steve Jobs ghost is going to hover over your bed and stare at you while you try to sleep.
Every time I try to virtualize OSX I fail, possibly because I use virtualbox and have an AMD processor... I wonder if this vmware thing is free.
Every time I try to virtualize OSX I fail, possibly because I use virtualbox and have an AMD processor
How many real Macs have AMD processors?
Any reason you did not go for a native install? It's not much harder than a vm one.
This way I don't have to reboot to switch from one OS to another.
True, that is a pain I endure. But for what I use it for: Home Music Production, I need all the power I can get 
I virtualized OS X on OS X host but have since deleted it. I needed a 10.7 system to test. Now I have 10.7 (and also 10.6) installed on external 2.5" hard drives.
Every time I try to virtualize OSX I fail, possibly because I use virtualbox and have an AMD processor...
It is possible to get working on AMD, but you need to use a variant of osx86 that supports it out of the box. it takes kernel hacks (extra drivers).
That said, you'll get the best experience from intel hardware.
Does Allegro work?
Does Allegro work?
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I haven't tried setting up a development environment yet.
I have an OSX inside vbox running under Linux to do this: http://allegro5.org/tests.py
I'm just using iATKOS though since after uploading my actual OSX image and following guides all day it ended up being the only thing that worked