Most guides on growing strawberries that I have read say that you should pinch off all flowers and fruit the first spring/summer that they are in the ground. It won't hurt the plant's ability to fruit later and should actually give you a much bigger crop next year because the plant is stronger/better established.

I second Heather's advice. You want your plants' energy going into establishing themselves the first year.

I've linked the OSU guide to growing strawberries in the home garden below. It is full of great information for first-time berry growers.

Dawn

Here is a link that might be useful: Growing Strawberries in the Home Garden