OBS
For track stuff I think
www.businesscycles.com is the best. Phone in your order. John is very knowledgable and helpful, has fair prices, and ships quickly and cheaply.
I also like
www.peterwhitecycles.com a lot. Excellent wheel builds, Specialites TA cranks, and Peter is also very knowledgable and helpful. Phone in your order.
For the best prices I like
www.speedgoat.com ; their shipping is free, but be advised that they don't always have everything in their catalog on hand.
LBS (Atlanta)
If you want to ride a pista, langster, or a fillmore,
www.outback-bikes.com has you covered. I wouldn't look to them for anything else, but just because they've dicked me over more than once doesn't mean they'll do the same to you.
No track stuff, but
www.atlantaprobicycle.com is great. Stop by if there's something you need done that you could do yourself if you had the tools. Chris'll let you use his.