I am looking for an established VFP-based medical office management application (patient demographics, electronic and paper insurance billing, HMO referral tracking, patient billing, payment posting, reports, patient appointment scheduling) for a 1-doc, 1-office location, 3-4 workstation situation. Soft-Aid offers one which I am looking at. Are there others? Any feedback re: performance, reliability and support for Soft-Aid's or others?