Next steps... Open, Close, Other?

[treefrogger]

What should I do to try to get my scores up?  Should I attempt to add another NFCU card with a similar limit?  Close the FIA?  Close the Walmart?  Leave everything alone?  Does having a store card really have a big impact?  I can't seem to break 700.

Here's the list of my current credit accounts

FIA MasterCard - opened 10/2003 (0/2500)  - Recently CLI'd back to old limit after reduction to $500.  Notice of $59 annual fee...

Walmart Store Card - opened 5/2007 (80/1175)

AMEX P/W Gold - open 10/2010 (0 balance)

NFCU nRewards - open 10/2010 (0/10000)

Citi Diamond Preferred Rewards - open 10/2010 (58/5500)

recently closed:

Citi Plat. Select MC (500 limit)  - Should this be reopened?  They said I had 30 days to change my mind.  I thought closing a recently opened card would help AAoA, but that was before coming here...

Target Red Card - opened 5/2009 (200 limit)

[gijoe4500]

Do you have any derogatory information on your credit report?  that could be holding you back.

[mauve]

Pay off one of those cards reporting a small balance, leave everything else alone.