Jeffro is correct. I have a 55 with two 48" shop lights over it(160 watts - 6700K) and the plants are doing very well. It also has 75lbs. of Flourite/Profile mix for substrate and is CO2 injected. These help a great deal and should be considered for a planted tank.
The other 55 has been retro-fitted with a 2x55 watt bright kit(110 CF). To my eye, they give off very comparable lighting.
This tank is similar to the one above in substrate(100% Flourite and injected CO2).
All the plants you mention in your tank, I have or have had at one time or other, and have been successful with under the described light.
If you are cash flow challenged(to coin a phrase) and don't care about the look, I would go with the shop light setup.
If you are in the bucks and will be injecting and willing to fertilize regularly and keep after the tank until you learn it's idiosyncrasies
you can certainly go with 3 or 4 watts/gal. CF (4 watts is IMO high light).
The shop lights are adequate and do a nice job, but limiting because of space. With the CF, the sky is the limit.
Check
www.ahsupply.com for ideas on retro-fitting. They also have a nice section on making your own enclosures for their lighting at dirt cheap rates.
Hope this helps rather than confuses you.
Len