that means I don't have a jib either - so I know where you're coming from
A lot depends on the wind and wave conditions, but I agree with Jaime and with Steve - keep up your speed, turn smoothly until the last 1/4 of the turn, sheet in the main and let it out per Jaime's instructions. The rudders will act as brakes otherwise as Steve points out. Definitely stay on the windward corner until you after you have come through the eye of the wind. I believe this is known as a "roll -tack". You are trying to pivot the boat on that one corner of the windward hull.
Having said that, you should not be afraid to gybe. Somewhere there was a real lively discussion about this. I believe that we had different approaches but most of them included bringing the traveler to center and then sheeting in the main tight - but NOT locked in - when the main comes over you can control the swing of the main by allowing the sheet out at a safe speed. Another way to do this is simply to grab the whole wad of line between the blocks and pull the sail over to the leeward side as you come through the turn. I still recommend starting with the traveler at center either way. Just don't let the sail "slam" to the new side in an uncontrolled swing. Oh, and make sure your crew knows what the heck is about to happen
Tacking with a jib is a cinch however. You should almost never blow a tack using your jib regardless of conditions. Follow all the above instructions for initiating and completing a turn except that you should sheet the jib in TIGHT, on the side it is on, the leeward side before you want to turn. As the bows come through the eye of the wind, the jib will "back-wind" and FORCE the bows to finish the turn. DO NOT release the jib sheet to the new side UNTIL you are actually starting to move forward a little.
It's fast, it's easy, and makes me wonder why I don't purchase a jib kit for my 17.... Oh yeah... money