Illustrator Logo

I need a fairly simple Logo designing: It needs to be made in Adobe Illustrator it must be square. it needs to have a transparent background i would like it in black or white A coloured background is fine whilst developing it but i must be able to discard the coloured background from a layer. The image needs to have a border and behind that border i need a Robots head looking out I need this to be a simplistic line drawing type image whether you use black and white lines or black or white I don't mind so long as it looks good. I've created a very simple [ bad drawing :-) ] to show you the layout im after .... i want the robot to be 'peeking out' of the square so i dont mind if you want to change it. I don't want it to look too 'cartoony' or too 'science fictiony' somewhere between the two Shaun