Friends of mine who were independent got decent financial aid packages in the form of grants, loans, and scholarships. The Pell Grant was one particular one they especially liked. Their financial aid packages covered most or all of the expected cost of school for a year (about $20k) since their EFC was basically zero. But keep in mind a lot of that will still be loans. It's not uncommon to rack up $50,000+ in loans just at a state school, even with a good amount of grants and scholarships.
Fill out the FAFSA by the federal AND state priority deadlines, and any forms from your school by the deadlines to get the most amount of aid. Note that the FAFSA deadlines are long past for 2007-2008 year; I think the priority deadline was March 1, 2007.
If you plan to go to college, better do it now then wait a few years. I say that because tuition has and will go up without fail roughly 10% per year. Combined with increases in other costs like room & board and fees, I'd estimate the total cost this year is about $1,500 more than the year before it, and same with the previous years.
With regards to how could you ever afford such a thing, one of the best options is to spend a year or more at a community college. The CC I went to for 1yr was ridiculously cheap (relatively) and my transfer of credits that I figured out by myself was near 100% towards my degree. Though obviously talk to advisors about this to make sure you do it right.
For more specifics on financial aid, check your state's education website and look for sections about 'Funding for college'. I know I got two good PDFs from mine that laid out pretty much all the federal and state aid available.