Your homepage should tell me what you do and, more importantly, what it means for me. Make sure your important services are easily found on this page and don't put too much on the page - keep it easy for me to find what I'm looking for.
I might need a number of services related to the same issue – use this space to tell me about them. Give me the confidence that you can take care of all of it for me.
If your business can offer me a large range of services, tell me about them. Show me how comprehensive your business is by offering me links to your service pages.