Haven't shot at Spring Valley, but I hear it's pretty nice. I shoot at Delaware and it is also run by the state. They're closed on Monday and Tuesday, but the price can't be beat. You should be able to pick up a range permit anywhere you get your hunting license, it's twenty four dollars for the annual permit, or five for a one day. You can also purchase them on the ODNR website. If you're lucky enough to have time during the week, that's the best time to go. Delaware is a madhouse on the weekends, I'm sure Spring Valley is about the same.