Todds is nice but trying find someone to help is a joke. I go to Neptunes at university and county line right off C470. Keys Island seems to be going down hill, but they have a great frag collection. Reef and pond on Santa Fe has a lot of nice stuff, only been there once but was impressed with there stock. For tanks Sherman Tank is prolly the cheapest I've found. There a little place around the corner from Reef and Pond called Quality Aqua. Aagian only been there once but nice and clean and very friendly folks.
Of coarse always take anything a LFS says with a grain of salt b/c they are there to sell you something. Most of them think I'm insane by not running mechanical filters and are amazed at my water quality. I guess they just think I'm lucky.
Honestly I come here for advise and really don't pay much attention to any of them. Do your own research and your good.
Where are you folks at in the city? I'm way out east in Doug county almost to Elbert.
HTH
Tim