I'm Trying to find a GOOD wireless system in the price range of -$500. I was looking at the Sennheiser Evolution Wireless 172... It's the instrument kind of the 100 series.. i've heard very good things about this and Sennheiser in general. It sells for about $369. I have also heard that the Shure UHF is very popular... Which one has the best frequency range? Which is more dependable? What is the model name of the Shure UHF that i keep hearing about, and about how much $ does it cost? Is there any other Wireless system that you would suggest instead? ANY input will be GREATLY appreciated. Thanks so much, Evan P.S. if this should be in another forum, please have someone place it there.. i wasn't sure where to put this. Thanks.