Good news, I installed Kalyway MacOS X 10.5.2 on that computer today and ran their combo update. Now, I can run OS X updates on that computer without it freezing. This computer cost around 700-800 bucks to build and it has 4GB of RAM, SATA DVD-RW, and NVIDIA Geforce 8600GTS GDDR3 512MB. You can pay $2200 for a computer from Apple that's not as good as this ( t has Dual-Core and 2GB of RAM.) or buy one for that price with an amazing graphics card and Intel Core 2 Extreme.