I use Total Merchant Services. My only complaint is I need to have 2 accounts with them - one for online, and one for the wireless terminal. For both accounts, there is a monthly fee, and I pay an extra fee for the wireless terminal, but it is well worth the cost. I buy the paper for the terminal at Sam's Club, super cheap. The terminal allows me to provide receipts for cash sales, which has really helped with my inventory and stats from each show ( I can track times of purchase for the busy times, # of items for each purchase, etc) I also like the statement format, it breaks it down in easy groupings for my accounting / tax purposes. I signed up with them the Monday after Thanksgiving last year, and had the terminal in use at my show the following Saturday. I can't say enough about the customer service! Hope this helps!