For the lazy and the lost.
Those wonderful people at Valve have included all you need for a 5 cp map, with 2 forward spawn rooms per side, math counters, round timers, capture points, etc all set and ready to go. I don't have the exact location but it is in your sourcesdk_docs orangbox tf2 folder somewhere.
All you have to do is copy them into your map, make your spawn room walls and line things up and BLAMO you are ready to go (Of course there are still the endless hours of making a good layout and detailing). Allthough the mapping purists may scoff, I have noticed no ill effects of doing it this way to date. FYI, do not group things to make them easier to move in Hammer as this will turn of their entity properties (all though maybe just in Hammer, not actually in game). I will update with the actual folder location later.
As promised: the location is Valve\Steam\SteamApps\username\sourcesdk_content\tf\mapsrc\cp_game_entities.vmf