Curt, Quick books is a fine program. We used it in out business. It allows for tracking who owes you money, who you owe money to, etc. Your accountant will appreciate it. It also makes paying employees easier.
However, if you are an owner / operator (as I recall you are) Quicken is a simpler way to track expenses. It is like writing a check and making out a bank deposit slip. You will set up names or codes for each thing you want to track - chemicals cost, vehicle cost, rent, insurance, etc. Then just enter that code or account name on the "Memo" line of each check you write. The computer will print the check. Anytime you want it will sort by category, date or any other way you want to sort things.
It can then give percentages. For example - fuel costs were 2.43% of your income.
Quicken Business does less than Quick books, but if what you really want is to track expense categories, this is the easiest.
Scott Warrington