Don't get me wrong. The new MacPro is a great machine, but 1GB of RAM? Come on. In this day? So I immediately ordered another 2X512MB cards from Apple. The hard drive seems to be doing a lot of caching, and with such a silent machine, it is very obvious. Not to mention, it slows everything down. So I just received the email from Apple that the RAM has shipped. They originally said 1-3 weeks availability, and it took about 1 week. I'm hoping this stops some of the hard drive access. Especially for $300 for 1GB of RAM! .