What kind of bulbs are you interested in?
One of the best suppliers for all kind of bulbs is Brent and Becky's bulbs. I like to buy flower seeds from Swallowtail Garden and Value Seeds. I am a lily freak, so I bookmarked some sites for ordering lilies. Let me know if you want those.
A good place to find a seller is Garden Watchdog.
Good luck!

thank you much for your help... As far as what we're growing, not much of anything really yet. The wife and I have played with this on and off for a while but are trying to step it up a little bit and get more serious about gardening. I have always liked to have a vegetable garden "even though I don't eat much of, just give it away" and my wife always enjoys flowers even though she doesn't plant them. I love her so I'll plant whatever she wants. This is our first year of planting seeds in a serious manner and now we have over four hundred and fifty seedlings and not even the first flower bed to put them in yet. :) I better get busy huh ;-)

Oh, you are so welcome!
What a nice husband you are :-)
You can start with purchasing a few plants from the local garden centers and big box stores. I purchase online when I need some unique or hard to find plants.
Just be careful - flowers are addictive :-)

I like Thompson and Morgan (seeds), Dutch Gardens (flowers), Brent and Becky's Bulbs, B&D Lilies, John Scheepers (bulbs), and Territorial for vegetable and flower seeds. All are available online; just type the names into your browser.