I'm so sorry that is happening to your little one! I can only imagine how scary it would be! I will, however echo what someone else said about neither the fever nor the seizure being harmful to your son in the long run. The book she mentioned ("How to raise a healthy child in spite of your doctor") is in fact a great book with lots of calming explanations concerning many medical issues that scare us as parents. I actually have a link of the full text that you can read on Goggle books (I linked it to the specific chapter about fevers): http://books.google.com/books?id=yWATg4JNQKEC&pg=PA79...
There's also this info about fevers in general: www.altonpeds.com/MythsAboutFever.pdf
Having said that, I also realize that as parents we want to be able to rule out something more serious so if your doc suggests you go see a neurologist, that might at least appease your mind to hopefully find out it really is just innocent febrile seizures and nothing more.
All the best to you!
S.
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