The site electoral-vote.com is not a very accurate one, period. They have numerous mistakes on it. Nevada is definitely going to go for Bush, they have it for Kerry. Florida is a toss-up, and they have it for Kerry. Wisconsin is also a tossup and they have it for Kerry. It really does come down to just a few key states. If Bush wins Ohio and Florida it's over. I thought all along Kerry had to win Florida to have a shot, and now it is close enough to make people think it is possible.
If you want a more accurate site try realpolitics.com - they are definitely pro Bush but they have the accurate polls if you look at their electoral college map and right now they have it Bush 227 Kerry 220 with toss up states Florida, Ohio, Pennsylvania, Wisconsin, Iowa, NM, and Me.
You can then go to their battleground states and see the up to date polls. Things change everyday, but it looks like the key states will be Ohio and Flordia, plus Iowa, Wisconsin and New Mexico. Even though they list Penn as a tossup I think Kerry wins it and I think Bush wins Florida. If Kerry wins Ohio then this is going to be extremely close and Iowa, Wisconsin and New Mexico will decide this.
Just another site for anyone interested to compare and track things, just in case you are interested.
Bill