And charge doesnt give you extra movement does it, just gives you +1 TH so maybe worth a shaman leaping about a bit.
Okay a couple of specific questions.
1. The Feat "Two Fisted Shooter" gives you a free action ranged basic attack if you crit, can you do this - if you wanted to - as part of the charge melee basic attack taking into account the charge attack is supposed to end your turn.
2. The new Half Elf winning races articel has a feat that lets you use the delantie power on a charge instead of a melee basic attack, so you could end your charge with something like "Twin Strike" for example at the end of a charge in this case.
This is often an individual DMs call. Free actions can, sometimes, be taken after a charge but often the 'ends your turn' means just that - your turn is over and no more actions for you!
Charge never one says it ends your turn. It says you can no longer take any further actions this turn. Free actions are actions that can be used at anytime and are not limited to you turn. Combine that with the fact that it says "unless spend an action point to gain an extra action". Well, to use an action point you have to use a free action. So, if charge was talking about free actions when says "action on this turn" using an action point would give you two actions since the act of using it is an action in itself.
There is also the fact that it says "unless you use". Not "you can use", but "unless you use". Like they thought that using a free action was something you could already do.
However, the PHB2 FAQ gives an example of a Barbarian using Swift Charge (a free action encounter power that allows you to charge when you drop an enemy to 0hp) after a charge.Um, no actions means NO ACTIONS.
Free Actions are forbidden at that point, with the exception of spending action points. We call that 'an exception.'
HOWEVER:
It is clarified on the FAQ that free actions -triggered- by that charge are perfectly legitimate to use at the beginning of the turn immediately after. That's the earliest opportunity, and you still get to do them.
However, the PHB2 FAQ gives an example of a Barbarian using Swift Charge (a free action encounter power that allows you to charge when you drop an enemy to 0hp) after a charge.


(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.