Firstly, I have my doubts this would have flared up anywhere near as much if it hadn't been Patrice Evra as the recipient. Evra does have previous, if you can remember the Chelsea groundsman incident a few years back. He got his way then, and he's got it now. I find it incredible to see the FA have handed out a large ban like this on the word of Evra - nobody else heard the apparent insult, not even any of Evra's teammates. The fact it also took so long before handing the ban out suggests their was a little bit of doubt around it all, in the FA. There is no video evidence of Suarez calling him whatever he called him, which I've been told the word was 'Negrito'. Whether that's true or not, only he knows. However, if this was the word used, then there is no straight translation to English, so we have no way of telling if it was intended to be hurtful or not.
I read an article on the BBC which I found rather interesting, highlighting the difference in the cultures within the game,
http://news.bbc.co.uk/sport1/hi/football/16262537.stm" onclick="window.open(this.href);return false;
The bit about the Uruguayian internationals having such nicknames for each other is a big one. Back to Evra, I was also told that his nickname within the Man Utd camp is 'Negrito', which, if true, makes this whole thing a farce. The fact that Suarez could easily have reported Evra for insulting him in Spanish, but didn't hear it, gives him a bit of credit.
As Richinns points out, the cultural differences around the World are big nowadays, and the rules are different. As said, the John Terry scenario is still ongoing, and as has been said already, he deserves a worse ban and fine as he has had police involved, and video footage against him, points against him. If he's found guilty, he should be removed from the England squad, and given a lengthy ban - whether the FA will want to impose such a punishment on the Captain of the National side, but if they don't there will be all sorts of problems.
I see Suarez is planning to appeal, fair enough, I'd like to see him get it down a bit more. This doesn't mean I'm not against racism, I hate it, I've had a mate racially abused at Plainmoor by opposition fans before, something I won't forget in a hurry. It is something that needs ridding in the game, but to set a bar this high, over a potential culture difference, is a shot in the foot for the FA, in my opinion.