@Fas5t3r - My sister had a root canal a few years ago and she told me that the pain wasn't any worse than getting a filling. She decided to just have the dentist fill the tooth and put a crown on right away though, so that she wouldn't have to worry about it again.
If anything, she thinks it's better than her other teeth now because it doesn't react to hot and cold temperatures like her other teeth do. She's always had sensitive teeth, so this is actually a bonus, although it doesn't really make much difference in the long run, since the teeth around it are still sensitive.
She was offered the choice to have a tooth extraction instead of a root canal before they did it and I think she definitely made the right choice. Tooth extraction might have slightly less risk, but in the long run I think a root canal is probably better for you.