Samsung Captivate (Galaxy S)

First off, the screen on this device is OUTSTANDING. I haven't seen anything quite like it. Also, the phone is thin and light, and battery will last two days at least even with moderate use.

Now, my issues are these... WTF did Samsung do to Android??? The only thing I can think of to describe it is neutering. Most of what I consider stock widgets, like analog clock, are absent. Even after replacing the Touch Wiz UI, they do not reappear.
Also, you can only check for software updates once in a 24 hour period. Kinda puzzled by this one.
Having the power key on the side takes getting use to.
The four touch keys at the bottom usually take two - three presses to register.

I am asking for assistance in how to bring about a more vanilla Android experience to this phone WITHOUT ROOTING. Any ideas??