Yeah I think pictures sig's look good ! Otherwise there's a full on text overload. The really big ones are annoying, but the little ones are cool - I mean look, TOOHEYZ's sig is practically the same size as yours hurrotisrobbo so you can't say it take up too much room
What you need to do is kinda create your own website. You don't have to actually have anything on it except for the picture.
So, get free hosting - like
freewebs or something.
Put the pic on the site from your hard drive or wherever - just click on 'images' or whatever and there'll be a place for you to upload it.
Right click properties will tell you the address of your picture. Then
<XMP> <img src="PUT ADDRESS HERE"> </XMP> (be careful not to delete quote marks) and just copy and paste all of that into your signature box. Done