And don't forget that each card needs to be reporting under 50% at the most. See if you can get your balance on the $3K card under $1500 with a goal of under $300 (10%.)
Don't know if your small cards are store cards or "re-builder" bank cards (Visa, MC, etc.) If they are rebuilders, it's possible that you will just never get much more of a CL than that. If so, you'll need to decide if they're worth keeping. Generally, if they don't have fees, sock-drawer them and use them twice a year to keep them alive. If they do have fees, you might want to get a better card first and then close them.
Closed cards will keep reporting for 10 more years, so this wouldn't hurt your history now. But if one is way older than the other two, you'll feel that when it does stop reporting. Doesn't mean you shouldn't do it, just see what the impact will be before you do anything.
I'm guessing that you are going to need to add a better CC to your mix. I don't know what your scores are now, but I would pay down your one open card *and let it report to your 3 credit reports* before you app. You'll have better scores, and get better offers.
* Credit is a wonderful servant, but a terrible master. * Who's the boss --you or your credit?
FICO's: EQ 781 - TU 793 - EX 779 (from PSECU) - Done credit hunting; having fun with credit gardening. - EQ 590 on 5/14/2007
