If anything, 5-minutes is overkill. It shouldn't take that long.
Using the network, learning the ins and outs, consolidating the philosophy and strategy to combine nicely with search and other social sites - all may take longer. Here, let's start with the basics. Get your page built.
There are a few things to keep in mind, but first and foremost is that you want it attached to your Google Places account. Eventually there will be some vetting that happens, but unfortunately anybody can make a page for any business. This won't last - they're just getting adoption rates up for now. Once they have the accounts active and working, they'll get into attaching them officially.
That will be a cluster, but we're not there yet. First, let's just get the page built.