Where are you located in Maryland? I know that there are several archery and hunting shops in the general area, so you shouldn't have a problem finding a dealer. Here is what I would recommend. Figure out which brand bow you are looking to get, then go to their website and search for dealers inside Maryland that carry that particular brand. Call them up and see what they have and if you are able to shoot (assuming you want to test fire the new bow). If your looking at a Diamond, Parker, PSE and some other brands, you can sometimes find those at our local Dicks and BassPro locations. That should put you in the right direction as far as finding a "new" bow from a local place. For instance, I am looking to get a BowTech for next season and a local dealer is only 15 miles from my house.

As far as the internet goes, archerytalk.com has a large amount of slightly used bows go up for sale on a daily basis. I've been browsing there the past few weeks and everyday, there are numerous offers that are hard to beat.