If anything, I would rather have Tiki Barber than Martin come for a one year fling. Martin made a super bowl and could have won one if not for a certain coach jumping ship to the enemy, which Martin did also a year later, so he might have had his chance to stay but didn't.
One name I can think of is Brian Dawkins. Not that he would leave Philly, but I see him as the NFC version of Rodney Harrison. Hardnosed player, I am sure we would welcome him with open arms here.