If your able to hold off until mix of next month, I am upgrading to a 40b and might have some trimmings available if things go well with the post tank setup growth. I just gave my last group of trims out, and now I need to grow what I have out to be able to plant the new tank. After that, I can certainly give you some plants.
What type of lighting, and are you using pressurized co2? Just so I know what types of plants will do well for ya.