I use eClinical Works. I pay $699 a month. Comes with healow and online booking that links to my website that I got for free from eCW as part of their sign up bonus when I opened my practice. I do all my billing/practice management on eCW.
I know some don't like eCW because of the interface but I am very content with it. I am a solo doc if that matters but I know a few big medical groups who also use eCW in my area. I have my templates for all my common pathologies so my notes are very quick for heel pain, ingrown, warts, ulcers, arthritis, capsulitis, toe/foot/ankle sprains, toe/metatarsal/midfoot/calc/ankle fractures.
One thing also is that eCW does not link to my digital x-ray. I have to enter my x-ray read manually. Not a big deal for me though.