That's only a real problem if you absolutely have to have the latest, greatest gadget.
In this case, you're limited by time and your choices, which, to be honest, makes it a bit easier.
Either unit will perform better than nothing at all, and either are still good performing units, by today's standards. And, I would venture to bet that they will still be adequate by 'common' standards for years to come.
you're probably right.
i found a sony on the list just like the one i mentioned, except that it has 16gb of it's own memory, and can use a class 4 sdhc card, or sony's memory stick duo pro. it has 25x optical zoom, and had good reviews on cnet, and a couple other places. the battery pack looks like it's a replacable unit, so i grabbed that one.
i feel it should do me well when i get to the airshows this year....and hell........since i got it just for doing business with these guys, that's even better.

and i thank you all for your advice and opinions!!