Using credit wisely is one of the best business decisions you could ever make. EVERYsucessful business leverages credit to preserve cash flow.
I would look for the best terms and go for it. Pay the balance down to $0 before taking on more debt. This will build your credit and give you piece of mind. Paying for everything in cash sounds good but it's not practical, and also not always necessary.
Credit is a tool of the trade just like a good mower or edger- use it wisely, don't abuse it, and it will keep making you money.