These are my current plans:
Tank size: 20G long or 29G. Go big or go home!
Substrate: Eco-complete (LFS1 has it, LFS2 has fluval). I use Eco, its pricey, thought about dirt?
Decor: rocks and driftwood. LFS has some drift wood, but I may need help sourcing these items.
Plants: I figured I'd get the Live Aquaria Mega Pack 30G, but I'm not really sure. Should I, perhaps, pick out several I like and get multiples of them instead of going for so much variety? Also, how important is it to santize the plants before adding them to the tank? I wouldn't worry about it. Potassium permanganate treat if you must.
Lighting: LFS suggested these Current LED models Do a little Internet research, important if doing planted!
Fish: Considering harlequin rasboras and cherry barbs. Should I get shrimp, otos, or snails for algae control? I was also thinking about killifish, but that might be too much of a commitment. Do what you like! I'm partial to Apple snails, and Bristlenose plecostomus, way cool and stay small.
Filtration: LFS guy suggested an internal filter. Don't listen to the LFS guy. You probably know more than he does.
I don't really have space for a sump, and I'll be putting this on a desk by a wall. I figured I'd just go with a standard external hanging filter.Not a bad move if you go with a Aquaclear, others need expensive cartridges.
Fertilization/CO2: not really sure here. I'll probably start with Flourish and I'll need to read up on the nitrates. I have old paintball gear that I may use to create a CO2 setup. Flourish comprehensive is only a micro. Add all of the Flourish macros, and it gets expensive! Look at GLA's dry fert packages.
Bump: Also Petco has their $1 dollar a gallon sale running through January 24th. I just picked up sweet 40B for..... 40 bucks!