K10D and Ebay Wireless Triggers

Has anyone used cheap ebay wireless triggers to connect your K10D to strobes? If so, what kind of wireless triggers were they? I’m looking for an alternative to the pc cable and want to pick up of these ebay triggers but I’m a little confused. Mainly because of the 1/180 sync speed- not being sure of the trigger is compatible with it. Also, are the 12v transmitters safe to use in the K10D hotshoe?

I understand that the 4, 8 and 16 channel triggers are more attractive than single channel units. If anyone has had an experience with these units, let me know, I’d appreciate it. I’m leaning towards a RD616 or on of these:

http://cgi.ebay.ca/Radio-Slave-Flash-Trigger-for-Studio-16-2-Receiver-T3H_W0QQit...