Thank you all so very much for giving me some priceless pieces of information! The SB26 flash arrived this evening and it's awesome! It's much easier to use as a manual flash than the 540 is - since I spent a fair amount of time last week playing with the 540 and getting used to using it manually, the extra options and ease of use of the SB26 is very, very appreciated. If another one is available at the same price from keh next month, I might just have to buy another, I very much appreciate the fact that I don't have to push buttons each time I turn on the flash, just to get to manual mode.
I have a huge amount to learn about getting the most out of flash photography, but I'm now starting to get an idea of what could be possible, have a vague idea how to go about it and an inkling of just how much fun it is going to be learning about it all.
My first ever dual flash photo - taken about 10 minutes after I got the SB26. The more I look at it, the more I see things I did wrong and that I could do better, but I was really pleased since no thought went into the picture, just plopped the flashes down on convenient tables and pushed the shutter button on the camera. Need to pay attention to angles, ratios, background and foreground more, but at least it all WORKED! And while it's not great, it's a whole lot better than any of the flash photos I tried before I got the triggers.
Thank you all again, SO much!!
P.S. I do have a light stand and an umbrella coming Wednesday.