This should answer some questions about the type of lights and triggers that we have been using in the studio events and on location....
To trigger the studio lights you will need to either have a Pocket Wizard or a PT-04 GY
The Profotos studio lights that we use for the events have built in Pocket Wizard receivers and in addition we attached the PT-04 GY receivers to trigger the lights.
Pocket Wizards and PT-04 GY do not operate on the same frequency....but they do trigger the Profoto studio lights as well as out Vivitar 2600D with out interference....
The price for a PT-04 GY starts at $19.99 for the pair
I recommend to buy the PT-04 GY . They are less expensive than the Pocket Wizard and can be use as a off camera flash system....They are a eBay item and take about a 2 to 3 weeks to arrive by mail....
One trigger and one receiver ($24.50) from Cowboystudio in the US
One trigger and two receiver ($21.62) from China
If you are going to set up multiple light set ups and I recoment that you should, buy two sets of one trigger and two receiver.
You might consider buying more receivers
X-MAS TREE SIX FLASH BRACKET
AFFORDABLE PORTABLE FLASH SYSTEM
This link will have information on the light set up that I use on location including the type of flashes that I use and materials that I use to build the system. http://www.danielimages.com/x-mas_tree.pdf
If you have any additional questional email me at email@example.com