JohnJames, can't wait to see what you might have cooking! As general tips, I'd start thinking of a theme of the video (if you even want one), then first pick your music and then pick your replays to fit that music.
I made this with sony vegas, so if you're using that, I can give you more useful tips than just general advice.
@TheMadCharles: So you know you have them and you know where to find them, but you still want me to send them? I somehow doubt you'll make use of the files and actually do something with them if you can't even be bothered to look them up yourself. If you don't know the specific directory in W:A, a simple ctrl-F would've made it a lot simpler, too.
Also would've been less effort than making these 2 posts