Hi Chris, I have been looking for software for our company for over six months. We are a new construction company with approximately 85 employees. We dont do HVAC, but we do fire protection and some service. We need a system that is one entry and will disperse to A/R, A/P, job costing and does estimation and inventory. I have found C/F Data, Star Builder,(both of which are compatible with Estimation which is a stand alone estimating program). I have also looked into Master Builder, CMS, KRS, Coastal Computing, MAIO, and Price Point to name a few. I also need great support as none of us here a very computer literate. I would be interested in talking to you about your system you found. Please let me know the details. Many thanks, Wendy