What perrennials will flower in winter?

Am i being neive to beleive that the list is hort enough to be able to fit in here?

I am looking to add some colour during the winter months to my flower beds which comes back year after year. I like anything that has more colour than greenery, with my very very limited knowledge that is my basic philosophy for buying flowers. I like colour more than shape but as yet i have a flower bed with lots of green and some flowers. Its looks nice but its not what i want...