its not a bad idea that you have going, but you should just make the sig smaller in size, change the text, and make the background render more transparent. keep doing tutorials and you will become better (:
Well im a noob also and all practice makes good practice right so well done mate i think i have seen worse.
Sorry to go off topic guys but i have the same problem with sigs, how do you guys blend the render in, i just can't seem toget rid of the outline no matter how many tuts i try. thanks.