People are laughing at the Core 2 Duo but really few programs even know what to do with Quad cores, Core 2's are still the norm and we are getting a big bump in memory. I really would like to see a good jump in the graphics card though.
Isn't that the point of Snow Leopard? To take better advantage of multiple cores, as well as GPUs. Also, 2GB more (4GB total) is not a "big bump". It's fairly standard with mid-range PC desktops now.