If I have 2 dependent children one age 17 1/2yrs. And the other 4 years and I only made $6,829.75 in 2008, how much will my EIC refund be? I only had $8.31 taken out for federal taxes.

For two children at 6,830.00, the credit is $2,730. Assuming that you did not receive any advance on the EIC from your employer, and that there are no other factors not listed, you should get the full amount of the EIC.