Just an FYI, don't be pressured or embarassed when doing the comparison. I asked the Apple rep how often people do this and he said all the time. He was telling me some guy had them side by side and looked at them for about an hour and ended up not buying anything. I'm guessing he drove himself nuts.
But my point was, go and just look for yourself. You can listen to peoples suggestions and opinions like you did with me, but its your money, your purchase and your happiness.
As far as Macworld, I hope and think I made a wise decision buying my macbook pro right rather then waiting. I could careless about iLife 07 since I don't use iLife 06. I knew that Leopard has a little while before release. If apple puts a new video card in the MBP, I'll kick myself, but I don't think that will happen.