first I am new to this forum and hackint0sh. What I want:

I wanted to create a Mac so I can use XCode and develop iPhone Apps. I could develop Apps on Windows but Mac is better!

I tried iDeneb 1.3/1.4 and Kalyway 10.5.2 in VirtualBox, just to see if it works, but it didn't.
After the system booted the Apple Logo appears. And after 15 mins, still nothing. It loads forever! It is not frozen, the small circle spins forever.

What can I do?

My System:

AMD Sempron LE 110 ~2.0 Ghz
2 GB Ram
Windows 7
32 Bit
Graphic card: Radeon X600