I'm interested in using some off camera flashes for my work but I'm quite new to the concept of it. I'm planning to buy a 430exII to go alongside a jessops flashgun as a slave and some radio triggers but the whole load confuses me..
Will the triggers transmit iTTL? Correct exposures etcetc, what to go for.. what to do.. how to do..
Your 430ex2 cannot act as a master. It only works in slave mode. I don't know much about your jessops gun but it may have an optical trigger that can be used. You will have to check. Generally speaking if you want the full capability of the Canon flash system, then stick with Canon flashes.
That said, you need the following as a minimum to get started.
1. A transmitter to fit on your camera.
2. A receiver for each of your flash guns.
If you want to get started with basic manual flash there are a variety of cheap and cheerful triggers from people like Yongnuo, Phottix, Pixel King etc. Using these, you will have to set the power of your flash guns manually and shoot in manual mode on your camera.
As you spend more and more on your triggers you will gain more and more functionality and other things like ETTL. Its really up to you how much you want to spend. What ever you end up buying make sure it is compatible with your flashguns.
Although you didn't ask for this, I would advise you to start in manual mode. Its not terribly difficult and it allows for maximum control.
Also, read the following website. It provides an excellent introduction to what you want to do.
www.strobist.com
On the right hand side of the screen you will see dropdown controls with 'Lighting 101 archive and Lighting 102 archive' in them. Read all of the articles in those two archives in order. Might take you a while but its the best introduction to flash out there.
Regards...