I also have a TS-830s and plan to use the following device:
Universal Keying Adapter 2http://www.hamgadgets.com/product_info.php?products_id=75&osCsid=91d1c7a85e3812c7fd406feeaea39b62
Info from the N0XAS website:
Keyer to transmitter interface
Computer to transmitter interface
Transmitter to amp interface
Anti-shock key to rig interface for "boat anchors"
Use this to key nearly any solid state, grid-block or even cathode keyed rig transmitter, transceiver or amplifier. This totally silent solid state relay is rated for a whopping 400V DC or AC, at 140 mA! Use it to key your tube amp from a solid state rig, or keep that high voltage off your straight key - no more getting zapped when you accidentally touch the wrong part of the key!