Hello all, Noob here! Trying to get into using off camera flash. I've been looking at the PW Plus II (2 of them) or one of the Canon Mini TT1 CE (i think the CE is the new one, but dont' know what the difference is other than the frequency of 443) and Canon Flex CE. Can anyone give me a fairly simple explanation on the Plus II setup vs. the Flex/Mini CE or Non CE setup? This is going on a Canon 50D with primarily a 24-105L lens until I can get my 70-200 2.8is Thanks a bunch.