how can I sync two flashes on the same cord?

[TrueColors]

Hey everyone--

Im thinking about setting up a flash bracket on my Nikon d40 - but I would like to add an SB400, next to my SB600....or perhaps a different different flash to allow me more creative lighting options without adding too much weigh. How can I sync two flashes to my camera while not sacrificing control to my SB-600 from my camera? Whether remote or cable im fine....the only option I dont want to go with is a flash triggered remote as when im at events I dont want other peoples flash trigger mine.

Thanks a bunch!

Geoff

 

[Dao]

If not using a wireless radio trigger, maybe something like this?
FlashZebra.com: Camera Hotshoe Adapter with 5 Meter Cord and Flash Hotshoe Adapter (Item #0146)

Never use that before, but it seems allows you to have 2 flashes sync together.

Of course, I still like radio trigger.

 

[Big Mike]

If you use wireless CLS, you can fire off as many flashes as you want.