You might want to check out The Divide / Fairway Pines in Ridgeway.
http://www.eqresorts.com/divide/index.htmlIf my memory is correct, (and there's really only about a 50% chance of that) you can play a twilight round there for about $50.
But I agree with the other posters about the Telluride Golf Club. It's worth it to spend the money to play that course. There are some challenging holes, but there are 5 sets of tees so you can give yourself a break and make some of the holes easier. The scenary is awesome, the staff is great. I know it's expensive, but if you're on vacation and you can afford to splurge, I don't think you'll regret it.
But I totally understand if you'd rather play a less expensive course and use the cash that you save at the New Belgium tent!!!