It seems like on the new Mac Pros they're making this more difficult. Even if you're comfortable snapping in a few more parts you might have some limits. If y

It seems like on the new Mac Pros they're making this more difficult. Even if you're comfortable snapping in a few more parts you might have some limits. If you notice the new RAM/CPU tray, on the quad-core entry level MP they only give you 4 slots for RAM, whereas on the 8 core they give you 8. I'm not sure if there is an extra socket on the tray to pop another CPU in or not, but I wouldn't be surprised if the answer was that you can't. So it seems like you can't just buy the entry level and upgrade it past the top level on the cheap this time around, which is something to be upset about.