If I recall from the Comair strike, all Alpa members will actually get billed for it, something on the order of 10 to 15 bucks a month.
If you aren't ALPA, or want to give more, I'm sure there's a way to. If it comes down to it in a couple of weeks, I'll look around for an address (There's always Alpa.org to find one too).
I had a Comair jumpseater once during the strike and I gave him 20 bucks too. He didn't want to take it, but I made him!
You guys rock!
Anyway, I keep hoping that they'll just decide to get along and none of it will be needed.