For chucking them on the banner, I could probably put them inside the banner's html and use CSS to position them relative to the bottom right corner, or something like that. Remind me to look into it when I haven't been at work until 8 or so.
Personally, I think the glow is a bit too much, which reduces contrast and recognisability of the logos; you'll probably want to reduce the glow, and add a semitransparent background layer of sorts to still make it distinct from the banner if we put it on top of there.