When I was a brand new gardener, I made a great decision. I planted grape hyacinth bulbs. Although I had a lot of failures in my garden experiments (I think I had about a 50-50 success rate), the grape hyacinths (muscari armeniacum) stand out in my mind as one of my biggest successes.
I bought 100 bulbs, mostly because they were cheap. Planting them was not fun, as I recall - I placed them in grass. And I had long forgotten them by the next spring. So, it was quite a delight to me when they came up and - miraculously it seemed to me at the time - bloomed! I have often wondered if the people that now reside in that house appreciate the pleasure of these small bulbs' blooms as much as I did.
Although they are quite small (tiny, really - I remember being a bit disappointed in their size), a mass planting will still stand out. Buy a lot and you will have some spring cheer. They don't bloom for a long period of time, but long enough to make you excited about gardening. If you are a new gardener, or even if you are not, I definitely recommend grape hyacinths. They will give you a boost of accomplishment and enthusiasm.
You have to remember to plant the bulbs in the fall. While you're at it, go ahead and plant some other bulbs along with them! You will not be disappointed. They are a cheap thrill!