In my opinion, timers are one of the most horrid suggestions I've ever heard. Just because the character doesn't have much time to think through an action doesn't mean the player shouldn't. If it makes combat take a little (or even a lot) longer, so be it.
Hit location charts used in a game that does not incorporate such things in the normal rules as written are just as bad in my opinion as well. If they were intended to be used, they would have been incorporated into the rules.
I have to agree with Arkangel. The timer is a great thing. I've wasted too many nights on just one fight because people take forever deciding what to do. No one in their right mind would enjoy sitting around a table for 20 to 30 minutes waiting for their chance to take a 30 second action. And it usually ends up being just one or two people in the group slowing it down for everyone else.
The hit location isn't a bad idea at all, and I think your reaction is very narrow minded (not being insulting, just saying

. That is something that really depends on what the players (and GM) want. If they want to know where they were hit, who's to argue? It saves the GM the hassle of being blamed for a character loosing an eye, if it was determined randomly, rather than the GM deciding it.
It seems to me that you must be opposed to any and all house rules. After all, if any house rule were meant to be used in the game, it would, as you said, have been incorporated in the rules.