I think some of your orchids will pull through, don't give up on them yet. Just don't be surprised if a few croak. Also expect the unexpected sometimes, you never know. A plant that you thought would be a goner may pull through, but the one you thought would be okay turns out to be the problem plant (I've actually had this happen to me several times).
Check this out, I think you'll like these two vendors a lot. They're from Hawaii and they've got some pretty cool good quality stuff at more than reasonable prices. You won't regret buying anything from these people.
Try:
Tropical Orchid Farm:
Tropical Orchid Farm
and
Exotic Orchids of Maui:
Exotic Orchids of Maui - Home
My first suggestion would be to go look at Exotic Orchids of Maui, I think they've got many plants that many people enjoy having and are not very difficult for those first starting out in the orchid hobby.
Tropical Orchid Farm has much more exotic stuff, but their quality is very good to excellent. Maybe when you get your feet wet, you can look into their plants.
Oak Hill Gardens also has nice stuff for a relatively inexpensive price. However, many of their plants are non-blooming sized seedlings or near blooming sized seedlings.
I'm sure there are bargains with many of the smaller vendors as well.
Check out some of the plants that people on the OB have to offer too. They look pretty well grown as well.
Don't be afraid to ask around the OB for plants, some people might actually have divisions or seedlings available. Some of them can be pretty rare.
Shop around.