These are all awesome suggestions. Since perusing this site, I've never been without plants of some sort in all of my tanks.
One of the best things you can do to make things easier is to start with the most durable plants you can find. Choose the ones that need the least light and are easy to keep (i.e., no special nutrient dosing required in most cases).
My first choices upon starting this hobby were just swords and egeria densa. Later, I added hygrophila polysperma (sadly, h. polysperma is a noxious weed in most states), java fern, and java moss. My 100gal tank has all of the above except for the e. densa, and it requires almost no maintenance other than pruning during water changes. The vals, swords and hygrophila can plant right into the gravel, and they flourish in spite of a powered UGF. The java fern does fine in the corners where the light is sparse, and the java moss is an accidental import that is just starting to show strands here and there...I started with a baggy of it, and now have a couple handfuls in my 3 other small tanks...it just grows, and grows in spite of my ineptitude at keeping green things alive.
I'm not an expert, so it's great to be able to listen to experts here; all I have is pressurized CO2 after struggling a year with DIY sugar & yeast. I lurk often on this part of the forums, because of the high knowledge levels.
Here's a pic of my rookie planted tank. I just finished pruning out several large handfuls of val clippings, and uprooted a small bucket of h. polysperma. I had to clear out all the h.p. in the middle area to transplant that little sword from another tank I'm tearing down and rebuilding. I started with two ragged looking val fragments, and they just took off (it's jungle val; i'd suggest the smaller varieties). That dark green clump closest to the right side of the pic is a bunch of java fern that started as a 2-inch strand that I tied to a small piece of driftwood. These are all beginners' plants, and even though they're not exotic, they still look wonderful waving to-and-fro in the light current I have going.
v/r, N-A
