New iMac with the ATI 4850 Graphics Card

So, the day Apple announced the new iMacs I ordered one. I customized it a bit, off of their web site by upgrading it to a 3 Ghz Core 2 duo and upgrading the graphics card to something I can use for gaming and Aperture. The problem is, as soon as I did that the ship date went from 24 hours to 4-6 weeks! Man, I hate waiting. Anyway, as best as I can figure out, the problem lies in the fact that they do not have drivers for the ATI 4850 in the kernel yet, so we have to wait for the next version of OSX to get released. That version will be 10.5.7. I have seen steady releases of 10.5.7 to developers, almost every week. So, no doubt it will be ready soon. My order status still shows April 14th, 2009 as the ship date; happy tax day it will be!