First, you have to find a Tactical - which I can't. At the gun show this weekend there was exactly ONE Tactical in the whole building (out of maybe 60 available XDs). I think the asking price at the gun show was $479, and I'm told by local stores that the regular price will probably fall between $469 and $499 - if they ever get one.
I didn't get the one at the gun show because the seller didn't want to trade, and I had to trade in order to overcome the one gun per month rule (it's a long, complicated explanation). So, I ended up trading with a different seller for a regular XD instead.
Good Luck!