splenda is a good sugar substitute depending on who you talk to. some people don't like the possible negative side effects that come with it and other people don't seem to mind. (its almost like how some people swear by organic foods but other people don't mind.)
my grandmother is diabetic but she uses organic honey, stevia or other natural sweeteners and watches her blood sugar closely. but i have a cousin who is diabetic who uses splenda and has no issues. honestly, it's your own personal preference.
id suggest doing some research on the pros and cons of splenda and make a choice for yourself because at the end of the day, what you decide is best for you is what's the most important.
as far as baking recipes go... im not much of a baker (as far as cakes and cookies go) but if you buy a box of sugar free cake mix you can use one can of your preferred diet soda instead of the egg, water, and oil and make a light and fluffy soda pop cake or muffins.
i like angelfood + sprite
and chocolate + dr pepper
its so simple. just box + one can of soda. nothing else.
basic recipe here
4laugh