A site I used A LOT when deciding on curriculum was Cathy Duffy Reviews. She gives great reviews on a plethora of homeschool curriculum. There is everything from the basics of Math, Grammar, History, Science, and Phonics, to extras like Art, Music, Foreign Language and Bible.
She has provided resources to Homeschoolers since 1984 and has even written a great book 101 Top Pics for Homeschool Curriculum.
In the book there is a great section to find out the style of homeschooler you are and the method that aligns with your teaching and learning beliefs.
On the website, at the bottom of each curriculum review, she includes pricing and buying links, what ages the curriculum is suitable for, prep time needed, she rates the need for parent/teacher instruction and the educational philosophy of the curriculum.
Even tho all of my curriculum is pretty set, I still use this site when I'm thinking of switching or adding something new.