If you're seeking a reasonably priced, very talented cover artist, look no farther than Dar at Wicked Smart Designs. I love all the covers she's done for me (check out my Books page; she's done all the Hometown Heroes and Cocktail Cruise covers), and her prices are totally affordable. I love her!
I also like working Hot Tree Editing when it comes to my shorter works. They're fast, personable, and very reasonably priced.
And if you're looking for an editor that will do deep developmental work and make your story better than you ever dreamed it could be, I recommend Karen Dale Harris. She's tough, and she's become more in demand so she schedules a few weeks out, AND her prices are higher than some others, but they're worth it, in my opinion. She's wonderful to work with.
So there you have it, a few shout-outs to the people I've worked with in the past, who've helped grow my writing career. I truly could never do it alone. Happy writing!