Hi Egbert, love the look of your tank so far. My setup is almost identical (walmart, 10 gal; only differences are that my filter is on the right and the lights are 2-15w instead of 25. You have LOTS of light. and is that a window behind it? Some natural light as well. Exxxxcellent.
As I am only a couple of months more experienced than you I hestitate to jump in, but for what it's worth here goes:
You really need to find a local fish store (lfs) for starters. You don't say where in Ohio you are but try looking through
here for a nearby club. Or there's always the phone book.
Go through the websites of the online plant dealers--I like LiveAquaria.com; for plant-only orders. they ship from northern Illinois which keeps shipping costs down for us midwesterners--and see the choices available in plants. For foreground/lawn type stuff dwarf baby tears (Hermianthus callitrichoides, commonly known as HC) are nice but a pain to plant. They come in a little pot growning out of a wool-like stuff.
Don't do what I did and just pop it out of the holder and stuff it, wool and all, into the substrate. Turns out this does not work. You have to tease the wool apart, take each little thread-like plant out (without breaking it or squishing too badly) and plant that by itself. Same for sword grass, dwarf hairgrass, etc. Although I planted them the same way, wool and alll, and they seem to be surviving and even, in the case of the hairgrass, already starting to send up some shoots a couple of inches away. You might want to schedule planting around the time you were going to do a water change anyway and pull out about 50 percent of the water. Much easier to do all this planting through 6 inches of water rather than 12. but your hands will turn pruney anyway.
Since you don't have any fish yet you are ahead of the game and can get your plants in and settled and growing before adding any creatures. You would be amazed at how such small fish, that don't actually eat the plants themselves, can uproot stuff just by nibbling on the leaves, nosing at them, trying to hide in them, etc.
as far as fish go, that's what you need the LFS for. Shipping fish through the mail is hideously expensive. You could drive 50 miles and spend less on gas than you would on shipping. Plus it's nice to support local business when you can. For fish in a 10, I don't see how you can go wrong with a dozen or so good ol' neon tetras. Love to school, eat cheap flake food, don't breed (so you're not overflowing with babies like , ahem, some of us who foolishly get a pair of mollies for instance) and their coloring actually makes the plants look better.
Just remember, with a planted tank, once something goes in it's pretty well in for all time, unless it is thoughtful enough to die and float to the top. Chasing a fish/shrimp/whatever around with a net will tear your plantings up good, and possibly even knock over your rocks. Don't ask me how I know this.
First stop though should probably be back at Walmart. Look on the wall and see if they're still carrying dry aquatic plant bulbs--a few months ago anyway they had two varieties, one of which is just the sort of mini-lilly you're looking for. don't believe the blurb on the back of the pack, they take way longer to grow if they do at all, but it's worth a shot. And pick up a little bitty backup tank, they have a 1-gal semi-triangular (pentagonal if ya wanna be technical) that is very handy to have around. Put your plants in it when you first get them for a few days to see if any snails hitchhiked in on the shipment. I nearly got swamped with (I think) trapdoor snails that way. Plus it's always good to have a backup/quarantine/hospital spare container anyway.
So there you have it. Oh, there's tons more about fertilizers, CO2 additions, etc., but the experts here are much better for that sort of information. Best of luck and remember it's your own work of art as well as a living ecosystem. You can do whatever looks and feels right to you.
Plant and fish questions. 
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