One of our sponsors is currently selling the
Mercury II quite aggressively (shipping included).
There's a review of it in the Hardware Review department.
That's a little above your budget, but a relatively safe choice.
With the hackers going up and down on a regular basis, some overpriced and overhyped receivers show up used from time to time.
Some, even if they were $180+ new, are really not a good choice for true FTA use, as they don't have proper control of switches, or motors.
Point being, if you find something cheap and attractive, ask here first.
Quite a number of folks have shown up here looking to know how to hook up their CaptiveWorks 600 receivers.
They bought 'em thinking they had blind scan.
Well, apparently, it doesn't really work that way, and in another thread, I just suggested one of 'em return it and get the cheaper Mercury II.
The Coolsat 5000 has been very popular here on the forum for quite some time, and I'd assume the 6000 being pretty much the same (just more memory) should be fine, too.
Neither are being built any more, and anyone selling 'em new is flushing out old stock.
If you find one for a good price, I'm sure either would be an excellent choice.