I'm set on getting a 3.2 GHz, 8-core Intel Xeon-based Mac Pro. 1) It is my understanding that this is Apples best desktop computer-is this true? 2) In the buyers guide section of this site, it recommends not to buy because an update is available soon. It also says it was updated Jan 8th? 3) I would really appreciate anybody's advice on to buy or not to buy. And why. Thank you.