I've just put up a "member map" using Google Maps so that you can show what part of the world you're from:
MacHeist Member Map
If you'd like to add yourself (you'll need to have a Google account and be logged-in), go to the link, then search on your location (for your protection, I'd recommend just putting in your city/state instead of your actual address), then click on the "Save to My Maps" link that's in the balloon that pops up. Then make sure that "MacHeist Member" is selected in the popup menu that appears and click the "Go" button.
It'll work best if you put your name or username in the Title field and put your location in the Description field (along with any other info you think is relevant).
tap tap tap chief