where can I get the Echinodorus 'Ozelot' (Green) and the Echinodorus 'Ozelot'?

Try Petsmart....they sell all these, ships worldwide and even transact online.

http://www.aquabotanic.com/abstore/index.html

this site has the "red Ozelot" and a lot of other swords.

http://www.aquariumplants.com/

you can search for a specific plant on this site.

you may want to pickup a copy of Tropical fish hobbyist

there are adds in the back of the mag for plants.

also, the sites i listed also carry complete planting sets for your aquarium with plants that do well together in the same water conditions.