Correct me if I'm wrong:
Charged-off mark stays in your credit record for 7 yrs w/e state you belong to. Your credit card issuers made the reporting in 2001 because you could not pay the amount for some reason. These charged-off marks will go off automatically in 2008 as you have mentioned. This is influenced by 7 year reporting act of FCRA; this has no connection with SOL.
SOL for the state of Michigan is 6 yrs. SOL starts from the date you paid last for the account. Once SOL for a specific account is expired, no legal action can be taken against you, however, collectors can still try to get it. One payment towards a past SOL debt restarts the clock.
Charged-off marks hurt credit score like anything. A paid charged-off is somehow better. See more discussion on charged-off accounts here:
http://www.debtconsolidationcare.com...geoff-acc.html