I just found it on eBay:

http://cgi.ebay.com/Wireless-Radio-Flash-Strobe-Trigger-PT04-C-4-Receivers_W0QQitemZ200396536076QQcmdZViewItemQQptZCamera_Flash_Accessories?hash=item2ea890790c#ht_2771wt_952

It has one transmitter and 4 receivers. It can trigger hotshoe and studio strobes as well.

I got 5 studio strobe, I now trigger one of them with a radio trigger, and the rest optically, which is fine in smaller darker rooms but not reliable in brighter situation especially at summertimes.

I also have an easy-to-carry hotshoe setup consisting 3 flashes (SB800-600-24).
Sometimes I use iTTL but usually I rather use manual and trigger them with optical triggers (except the SB800 that can do it by itself in SU4 mode).
But that also could be unreliable. So it would be great to go to radio signal and this could be used with both setup if I am right.

Also would like to hear if somebody using this cheap manual flash:
It is specially made to be used in manual setups, can be triggered optically (even in iTTL setups it can avoid to be triggered by preflashes. (that would be the forth flash in the hotshoe setup :-) )


http://cgi.ebay.com/YN460-YN-460-Slave-Flash-Nikon-D5000-D700-D300-D200_W0QQitemZ110446348285QQcmdZViewItemQQptZDigital_Camera_Flashes?hash=item19b71d87fd#ht_768wt_1167

Thanks
jano