@joybond- well, I'm not a big fan of big sigs, but it looks good... some things to edit if you want/have time is:
you should cut out some pixels in the lower section to get rid of that text bj is talking about.
you maybe are able to do something, like a square filled with your design where the text could be
and you might be able to get it a bit smaller?

@mo- I hope you see them soon, they are really good

and if you don't want to exchange your sig you could do as bj did, make it animated...
bye!