Questions about a 75 gal and it's fish stock.?

I want to get and am planning on getting a 75 gal. I need to no how many watts I should get for the heater. Filter-??? And ithe fish I was thinking- ( I already have some and will be switching them to the 75 gal once I get it and set it up. First ofall- the fish I have and will be switching over----- a few guppies like 10, 5 panda platties, 4 cherry barbs, 4 albino cherry barbs, 5 black neon tetras, 4 cardinal tetras, 6 gold tetras,5 juli cories, 2 albino bristlenose plecos, 6 ghost shrimp, and 1 male flamming dwarf gourami. Here wat I'm think of GETTING and putting them in the 75 gal with the other fish I listed, 1 more male dwarf gourami, 4 female dwarf gourami, 2 more cardinal tetras, 1 more black neon tetra, 1 more female cherry barb, 1 more female albino cherry barb, 2 more juli cories, and 3-4 platties of some type. Is this to much? And maybe 5 albino cories. Would the to cories get along? And I plan on getting a whole bunch of plants, and more driftowood. Any comments on anyof the fish not getting along? BE nice. Does any one have a 75 gal tank that isn't broken that their willing to sell in the wisconsin (greenbay, allouez, belleve) area? Oh and also 3-4 swordtails (1 male, 2-3 females)