Well I went to the dealer today. I wanted to tell everyone what I found, that I had not found before, so here it is:

1) The 2000 models actually have wheels that go on with lug nuts.
2) The electrical wires are not exposed to mud and stuff for 2000.
3) Arctic Cat went to foam filters for 2000.
4) All the Arctic Cats come with a redesigned "dash".
5) Speedometer still not upgraded.
6) The Automatic's 2wd/4wd lever is better than the 300's but it still moves around alot, but it is very easy to change from 2wd/4wd.
7) The automatics have no inner fenders (between the front shocks).
8) The range selector on the Automatic works great.
9) The trans vents on the automatic stick out ALOT on the right side. It looks like it could be modified very easily to be higher since it sticks out so much.
10) The Automatics at my dealer still have wilwood brakes.
11) The Auto comes with different floorboards than the others.
12) The red 500 looks very cool.

Arctic Cat 500, OH HELL YEAH!!!!!!!!