Thank you all for your responses. Lots of good info!
I've decided I'm just going to close my newer cap one card. It has a paltry credit line, so closing it shouldn't have a negative effect.
I'll hold on to one no fee card from each issuer, just to make sure I have a long history with each ... now that I already have these cards. The Citi divident I'll hold on to as well in case it comes in handy on a future Citi recon call.
Thanks again!