having worked as a manager at a pizza shop for a long time and now working as a cook...
my advice is to (not overspend yourself)...but invest in computer programs (POS systems) that will make your life easier and in the long run save you lots of time and money ...esp with food cost.
Something that keeps track of your inventory, schedule and something that itemizes the orders as they come in.
Many of these programs you can even finance...just view it as another piece of equipment you have to buy just like the other things in the kitchen.
I work at a chain as a cook and the server punches the order into the computer and we get a ticket on the cooks line...we hang them in order over the one grille and call them out (teamwork, communication is vital in running a kitchen...get a system going and establish areas so everybody isn't running around cooking the same plate 10 times)
I honestly can't imagine doing things the old fashioned way...handwritten checks and long hand accounting books and inventory control lists...
yuck...*shudder*
Sure, you can do things this way but why make things harder on yourself?
good luck