Random Favorites
A quick jotting-down of some of my favorite gluten-free foods and resources:

Pamela's Products: chocolate cake mix, ginger cookies with almonds, basic bread mix.
Glutino: crackers, pretzels, wafer cookies, rice macaroni
Kinnikinnick: KinniToos sandwich cookies
Gluten-Free Pantry: chocolate truffle brownie mix
Trader Joe's: brown rice spaghetti and spirals, ginger snaps, licorice scotty dogs, rice sticks (noodles), gf granola
Ancient Grains: quinoa macaroni
Authentic Foods: superfine brown rice flour (necessary for good cookie texture!)
Red Bridge: sorghum beer
Bob's Red Mill: specialty flours and gums, also has recipes (their snickerdoodles rock)
Ener-G: specialty flours
Barbara's Bakery: Puffins cereal
San-J: wheat-free tamari (soy sauce).  This is what Pei Wei and PF Changs use as their gluten-free soy sauce, as well
Dynasty Foods hoisin sauce
Thai Kitchen noodle bowls and packets

Living Without Magazine: great resource for anyone with food allergies.  Their all-purpose flour blend is my standby.
Recipezaar: has a category for gluten-free.  I've found some great recipes there (funnel cakes!)

The bread machine I have also came with a batch of gluten-free recipes.  The Country White Bread is my mainstay bread; I like to replace the oil with ground flaxseed, and add sesame seeds, sunflower seeds, and poppyseeds for a great tasting, multiseed bread.  Much better than the few commercially-prepared gluten-free breads I've tried.

There are a few other resources I use, like the Gluten-Free Club, but its recipes are not as reliable as Living Without's.  Plus, if you only sign up for the free recipes, you have to deal with the constant barrage of "Join the club!  Join the club!  Join the club!"  So far, only one recipe I've used from there has become a standard in my stable, and that's the bread/roll recipe.  I use that when I'm making a full batch of hamburger rolls.

Also, before spending money on Bob's Red Mill and Ener-G flours, take a look around any neighborhood ethnic markets.  This suggestion was made to me back when I first started complaining about the costs of flours, and I've just now gotten around to it, thanks to a LARGE ethnic grocery opening nearby.  I found white and sweet rice flours, soy flour, garbanzo flour (gram), tapioca starch, potato starch, and arrowroot starch, to name a few, for much cheaper than at the health-food stores.  I also buy my thick rice noodles there, rather than at Trader Joe's.