340EX is a great Flash, if you are traveling its big brother the 580EX although better is also heavier, thus the 340EX is a wonderful choice. as for the lens, if you dont need much zoom, possibly the 20-35mm lens would be of interest, its really small, and whold get you the view you want, and with the beloved XT the image is quite adequate (i know ppl with full frames will be screaming that its not a good lens) but for a crop its really a good choice!