I personally do not have any children, so this isn't a problem I have had to face in life. However I do know that there is a large amount of assistance out there which is available for those students have put forth a great effort and have decent grades in High School.
If you look online you will I am sure find loads of ideas and tips on getting help with making sure that your child manages to get into a college which they want and get into the courses of study to help them along in their career choice.
Here is one site that I found that may help you all in making sure that your children get what they want and deserve.
College Help
This site even though I did not fully read it seems to have some great information that may help you all out. At least I hope that it does.