Hi all, I'm interested in taking my photography to the next level when shooting items for my wife's Etsy site (lots of stuff on full size mannequins). I'd like to start experimenting with using an off camera flash as a slave triggered with my on camera flash. Does anyone have suggestion on an inexpensive slave flash that might fit my needs? Preferably under $200. I would use it with either a soft box but more likely with an umbrella. I currently use a Panny G3. I would love any suggestions. Thanks.