Corporate Logo

I seek a corporate logo that has, to be used in print and on our website. The logo will have an underlying image tone of a watchdog. We are an advocacy group for buyers of supplies and the company of called supply watchdog. Therefore, the image has got to give relation to security, protection and wholesomeness. The image needs to be a dog, possibly a bulldog, with standing at attention with maybe a gold padlock around it's neck. I don't want the dog to look mean or vicious, but i don't want it to look happy/playful either, somewhere in the middle. The logo for use on the website will have subtle movements, such as minor movement of his front legs, maybe a tail movement and/or eye blinking, etc. For the print logo, i don't mind what ever stance allows for good detailed printing. I'm seeking creativity as I'm not very creative myself.