Hi Cathie,

There's probably not enough information there to give any specific advice. 
You say 'functions'  does this mean event photography ?
Are you looking to print on site ? 
Most event photographers use a dye sub printer - it is fast, reliable,  easier to calculate costs and has the advantage that prints are robust.   The Kodak and Mitsubishi ranges are well thought of. 

Nearest place for you to look at professional supplies is http://www.photomart.co.uk/

hth
R

And every one said, 'If we only live,
We too will go to sea in a Sieve,---
To the hills of the Chankly Bore!'
Far and few, far and few, Are the lands where the Jumblies live;
Their heads are green, and their hands are blue, And they went to sea in a Sieve.

Edward Lear
http://www.nonsenselit.org/Lear/ns/jumblies.html