i was in Prague last september and had the good fortune to meet a captain from CSE the national carrier.I think the airfield just to the north of town,on the yellow tube route and a short walk up a hill,is called Let Nanny,and the millitary field in close proximity is called Kbelly.You can get a zlin 142 for around £70/hour. But why not go a bit further afield,my brother lives in Bratislava and there you can hire from as little as £25/hour or even have an hour in an AN2!!! for about £120!!! worth the trip i must say! Good luck.