The absolute best gluten free bread I've ever bought is called "Goodbye Gluten" and not only is it the best GF bread I've bought, it's the best bread I've ever NOT made myself, period. Super soft, tastes like fresh baked homemade, NOT frozen, and does NOT need to be toasted to be edible. All other brands of GF bread I've tried (Rudi's, Udi's, Ener-G, all the rest) really have to be toasted to be edible...and then, they are just barely so.
My favorite GF pasta is Heartland...it's a mix of rice and corn, and you can actually find it at WalMart for around two dollars a package (great price!) They make a spaghetti, a fusilli, and a rotini, I think.
For frozen things, I absolutely love Kinnikinnick. They're GF homestyle waffles are one of the best frozen waffles I've ever had...way better than Eggos. Their pizza crust is also, by far, the most edible and most properly bakeable...not sure how to word that! ;)
Cookies, cakes, etc, I mostly make my own. Bob's Red Mill has a baking flour mix which I prefer over making huge batches of my own, which can be a pain in the butt, requires too many open bags and too much storage space, and really isn't worth it. One thing you absolutely need to have on hand for baking is xanthan gum...it's expensive, but it will last a very long time in an airtight container and you only use a bit for each recipe.
As far as cooking gluten free, we didn't have to change a whole lot when we switched (my youngest has CD.) Whole foods...meats, veggies, fruits, rice, etc...are all still on the menu and the table. The only major change, besides switching pasta (which we barely eat, anyhow) was to make our own GF cream-of soups because they're too expensive to buy. I have a good recipe for these, if you need it...just PM me, because I'll have to look it up. I make a batch of the starter and it lasts forever...and is so, so, SO cheap.
If there are any more specifics you are wondering about, please feel free to PM me...I don't think there's a product or recipe I HAVEN'T tried. ;)
(I see that Maureen does two things we do...one, the Heartland pasta from WalMart, and two, corn tortillas. If you put about five between two damp paper towels and microwave for about 45 seconds, they take on a whole new delicious taste and soft texture and I personally use these instead of bread because while I love the Goodbye Gluten, it's six bucks a loaf. Ouch.)