Preloading External SWF's

Is there anyway to preload external swf files while my main animations and welcome message are playing? It would make my site a lot nicer if you didn’t have to wait for the files to load?

I assume, you’re not asking how to preload in general. I may not be doing this the best way, but one thing that I’ve done is to place an empty mc way off stage (like -2000 or whatever), loadMovie the swf into that empty mc, and when my preloader tells me the file is loaded, move it’s x and y axis to the location I want.