This link has a step by step guide to cycling your tank the "silent cycle" way, which means that you will add a ton of hardy plants to your tank, along with fish, immediately.
That is exactly how I set up my 55 gal and it worked beautifully for me. I planted a lot of stems(many of the ones suggested on Rex's site), threw in some old filter media from another tank, and within a few days added 2 SAEs. A week later I added 3 ottos, and then a week after that I added 10 guppies. Since then I've stocked my tank with about 15 other fish (4 or 5 at a time) and have NEVER seen a spike in ammonia or nitrates. Bonus: my plants grow like CRAZY!!
Rex has lots of useful info on his site, spend some time reading all of it and you'll have a plethora of knowlege to help you with your tank.
I have about zero understanding of what the T5HO lights you're planning on using acutally put out in reference to amount of light. It seems from a cursory glance using google that it's going to be a lot. (Like I said, I'm not sure though. In general, two 39w bulbs would be about 2 wpg, and that's low/medium light, but from what I read on a couple of web pages, it seems that the light given off by the T5's is higher in lumens/intensity per watt?? If I am wrong in my understanding, please disregard my comments to follow.)
With high lighting you're going to need either a LOT of DIY CO2 or a pressurized setup, otherwise you'll be algae farming. I run 206 watts of compact flourescents on my 55gal and am using pressurized CO2 and am still messing with the ferts to try to find a good balance to keep the algae at bay.
Just a suggestion/my 2 cents:
Pressurized can be a bit of an investment, but once you make the initial pay-in, you're done for a while. No messing w/ soda bottles and silicone, mixing together yeast and sugar... not to mention if one of your bottles gets knocked over and the yeast mixture accidentally gets into your tank.
The CO2 was probably the most expensive part of my setup, yet I feel it was worth it. My plants are lovin' it!