Even though these days it's possible to run Hackintosh on normal Intel hardware, but still it's not stable and well there are hardware compatibility issues. So well other alternative to using MAC OS is either to purchase MAC hardware(which would be naturally expensive) and run full fledged MAC OS or you could tweak and customize your Ubuntu desktop to look more like MAC OS X.

As much as my general first impressions were positive, I must admit I wasn’t too impressed on the look of the default Ubuntu. If you’re used to something a bit more shiny, like Vista for example, you might be disappointed. All very surface I realise, but aesthetics are increasingly important as expectations are raised by new and ever more spangly offerings.