If you’re a student looking to buy a Mac, it looks like joining up as a Student Developer ($99) and using the one-time hardware discount (20%) from the ADC Hardware Store would be your best bet if you don’t have any special connections/deals. You can get a Dual 2GHz G5 for just over $2000, 1/3 off list-price. (a normal academic discount is 10%)
Of course, my plan is still to get my G5 for free.