Hi All! I'm looking to get a new Mac Mini for my Music School for keeping track of inventory, rentals, accounts (monthly invoices sent out) and sales. I'm not quite sure what app to go with. I'm leaning towards Billings but I don't think that covers all my bases. Is there anything one of you can recommend to me? I'm not opposed to multiple apps as long as they dont have a huge learning curve. Thanks in advance!