I dove into plants without doing any research, and so far I'd say I'm doing pretty good! XD I've got gravel in all of my tanks, and most of my plants are doing pretty well. The following plants are what I've got in the gravel:
Dwarf Water Lily
Microsword (no growth seen yet, its still new)
Dwarf Hair Grass (ditto)
Kleiner Bar Sword (I've seen similar plants at Petco labled as assorted crypt, so I have no idea what this thing is)
So far everything but my two carpet plants, and the compacta, are thriving. The carpet plants haven't grown any, and the compacta I've never really had luck with, but its not dead yet!