430EX ii. It is an great flash. I found that I liked the tilt, swivel, bounce mechanism and use it on most every shot. I also learned later that more power would be nice in many situations so I bought the 600EX-RT. As of now the 600 is way too much flash for me, it's power was useful at my last wedding since we were in an extremely dark barn with an incredibly high domed ceiling. Apart from the last situation, the 430 should work very well for you.