I just purchase a Dual 2.7 and it is quite and fast. What I really need is a better monitor now. My 17″ is just not cutting it.
AE 6.5 was written only to accept 2GB of RAM from what I have read. I know this to be somewhat true, because at work I have a G5 2.0 with 4GB and AE never goes beyond the 2GB limit. So I got my 2.7 with only 2GB for now. When AE increases that limit I’ll buy more RAM later (hopefully 1GB chips will lower in price). The 2GB I got were in 1GB modules.
In terms of the NVIDA / ATI debate, I went with the ATI for cost and the fact I don’t see myself getting a 30″ display anytime soon. The specs between the two cards are close and I figure by the time 30″ are today’s 20″ LCDs (in price) graphic cards will be even stronger and do even better things. The ATI can run two monitors still and only takes on PCI slot, so when the time comes to get an NVIDA type card that takes two slots, I still have the room.
I haven’t got a “new” desktop since my old PowerMac 8600. I’ve run upgrade cards and stuff, but the old 8600 lasted me a long time. At the time it was the top of the line when it came out, so I did the same for the G5. I am hoping for the same longevity.
Maybe my decisions will help you.