I bought my Canon Speedlite 580EX II Flash in Dec-09, but just now am getting around to "playing" with it, experimenting with its capabilities, limitations, etc. Even though I've had the T1i since Oct-09, I wanted to learn the camera usage w/o flash, and not overload on too much learning. Now I'm ready for the next level....hopefully. I plan on using this flash for indoor family group shots, outdoor fill flash, I'd like to experiment with some H20 drop freeze action (those are cool), etc. I'm looking for suggestions for me to get: - Which 1 book to really learn my flash? (yea, I hate to ask this way) I like reading a book and then trying the device, Im not into online reading learning material as much; my reading time is usually 8:30-9:30pm at night after kids put to sleep, or while I hide for 20-30 minutes in the "reading room" with door shut (aka bathroom). Im also looking at flash diffusers, many people recommend this one: Sto-Fen Omni-Bounce (white) http://www.amazon.com/exec/obidos/t..._shr?_encoding=UTF8&m=A17MC6HOH9AVE6&v=glance While Im at it/ordering, should I get these also for different lighting situations?? Sto-Fen Omni-Bounce (Green and Gold) http://www.amazon.com/exec/obidos/t..._shr?_encoding=UTF8&m=A17MC6HOH9AVE6&v=glance Plus an Off-Camera Flash Sync Cord. Ive got a boom stand which I used for my IB subwoofer acoustic measurements, possible I could use that to hold the speedlite for indoor shots? Id need a long enough sync cord. Im not going $$$ wireless at this time. It has thd end which should be adaptable for off camera lighting. Honestly, I'm somewhat intimidated by the 580EX II , even though I've read the manual that comes with it 2-3 times, but I do want to learn how to use it.