Credit Card Programs - Best Bank issued Amex?

Hello All,

Am looking for some new cards... I am trying to add Amex to my 'portfolio' and already have all those issued by Amex themselves, so looking for bank ones - examples are BOA Virgin and Penfed Amex.

Are there any other good ones out there (ideally with tasty sign up bonuses too)?

EDIT- Ideally looking for something linked to an external FF account, either Air or Hotel...

Fidelity Investment Rewards American Express Card

2 Worldpoints per $1 spent, transferable to Air Canada Aeroplan ( a member of Star Alliance )
or can be redeemed to a Fidelity account, ( thus a 2% card back card )

http://www.flyertalk.com/forum/milesbuzz/1262549-citi-aa-100-off-50k-companion-cert-plus-other-offers-they-appear.html for AA miles (see Amex link in first post).

Ditto on the Fido AMEX. It's my daily go to card for non-food/grocery/gas purchases.