IMO using groupings of plants with different leaf shape, color, and texture really makes a tank pop. If you google Dutch style aquariums you'll see some wonderful examples. My 220g shows this and also has 2 large pieces of DW worked into the scape.
Plant's that would work well in your tank:
Rotala's: Wallichii, Macrandra, Vietnam, Mini Butterfly, Indica, Glandulosa
Ludwigia's: Atlantis, Senegalensis, Red, Repens, Cuba
Limnophila hippuroides
Cabomba Purple or Furcata
Hygrophila corymbosa Angustifolia
Alternanthera reineckii
Pogostemon Erectus
These are just a few of the stem plants you could grow along with Swords, Crypts, Lotus Red or Green, and other bulb plants.
For ferts I would suggest:
You need 3 dosing bottles found at the bottom of this page...
http://greenleafaquariums.com/aquarium-fertilizer.html.
This is a good thread about dosing PPS-Pro. Only read the opening post not all the comments after it....
http://www.aquaticplantcentral.com/forumapc/pps-analysis-feedback/39491-newbie-guide-pps-pro.html.
There are two things I do different from the article. First I use 3 dosing bottles as I split the macro nutrients for better custom dosing to the needs of the tank. Nitrates in one bottle, phosphates and potassium in one bottle, and micro's in the 3rd bottle. The other thing you'll notice the recipe calls for using MgSO4, magnesium sulfate, which you don't need if you have hard tap water with a Gh and Kh of 4 or higher.
Then as suggested you need to use either pressurized CO2 or a high dose of liquid carbon daily.