The speedy is my favorite bag, have it in damier ebene, azur, mono, and epi! I think having an azur and ebene would be ideal, you have a light and dark bag and a style you adore! Get it!
If you love it, get another one. Many people on this forum have multiples. I have 2 even though I don't find the shape practical for me. If you use it a lot and love it, the speedy is probably the best value for any designer bag!
Berkeley, Ribera and Duomo are nice alternatives in Damier Ebene that you might want to consider. They are similar to speedy but slightly different in shape.