After giving up aquariums 25 years ago, I decided to build a planted 90 gallon community tank. I set it up in December and was amazed how technology has increased since I was last into it. Anyway, I went with an aquasun quad T5 HO 48" light, Fluval 406 canister filter, a "Green Machine" sterlizer, and an old Millenium 3000 HOB filter I had laying around for equipment. For dirt, I mixed red and black floride substrate (about 80 lbs worth) and topped it with gravel. It's been running for the last couple of months, it cycled in about 40 days (Nitrites were crazy high for about 2 weeks) and has settled down nicely.
I am a little over stocked with fish and they are doing quite well and my plants are so-so (some doing very well, others not so much). My next step is a CO2 system and I've decided to go with a pressurized system when my wallet can handle it.
All told, I'm probably into it for about $1200 counting plants and fish.
I've been reading this forum since I started and found a lot of good information here. Seems like a lot of folks know their stuff.