Avast ye. Put in an option to send terms of surrender to another ship during battle.
Terms should include an amount of isk to transfer as well as the option to force a cargo jettison.
Might want to put in options that ensure that surrenders are honored through some restrictions:
No target lock on surrendered ship for 1 minute. This gives time to warp away or move through a jumpgate area.
Loser can't activate any modules except for those he could during a warp.
Loser should not be allowed to open the surrendered jettison container during a certain period of time so that the victor can take what he wants.
Right now it's pretty difficult to be a real pirate. If you give someone time to send money or jettison, they just use it to scheme against you. If you had some ingame mechanics for it, piracy could become more common than mere slaying. And we all want more piracy in the game right??