You've got to be joking!!! However, if you're serious, I strongly recommend you go to www.macbookrandomshutdown.com and read some of the comments posted before shelling out your hard-earned dough!
I love love love my MacBook -- when it's working. Unfortunately, that's not too often. You see, MacBooks have a propensity to suffer from Random Shutdown Syndrome (unaffectionately known as RSS) and Apple's customer service has been less than perfect to say the least.
Just something to consider