Fans may or may not be needed, it depends upon the heat generated by the lighting. I use T-5 high output lighting an my large planted tanks. I purchased these fixtures from www.petsolutions.com
. I did change my bulbs to a bulb that had a sprectrum more condusive to plant growth.
I use EcoComplete substrate for planted tanks. Purchased at the same site. As was the CO2 system. It cost about $149 for the bottle rig. There is also a paintball tank version.
Filtration is a little on the cotroversial side as I am using (4)Marineland 1140 powerheads running reverse flow on a ugf, along with (2)Fluval 4+ internal power filters, (2)Emperor 400 external power filters, and (2)new Magnum 360 canisters. No carbon in any of the filters. I use a filter media and bio-balls or bio-stars.
C02 is delivered through a wooden bubbler "stone". Ceramic would also work here.
All the above items were purchased at the same place as all of the rest.