Ok, I don't understand why people are so upset about the iMac upgrades...
So they raised the price slightly.
They increased the amount of memory you can have to 8gb...even coming with 4gb which i believe is more than the standard last time.
The memory is upgraded from DDR2 to DDR3
They increased the monitor size to 24"
They included a better CPU (new technology, same processor speed = better)
So they didn't put in graphics cards on the lower ends, they still included the nvidia chipset which is pretty good.
....The baseline iMacs are not meant for intense activites...that is the whole point of computer companys providing upgrades for the customer.
STOP COMPLAINING
one word - Integrated Graphics Card!!! actually three word ...