Of the bows you mentioned I've only shot the viper and montana.
The Montana was hands down a better bow than the viper.
Also, if memory serves me right, I think the PSE and the viper are pretty much the same bow.
But any bow, is better than no bow at all. So get the best you can afford, and while you're shooting it, same up for a nicer one!
But as others have said, the classifieds are an excellent place to find a quality bow. I bought one a couple weeks ago for $250, made by a small time bowyer I've never heard of, that is a dream to shoot, and is nearly silent with no string silencers at all.
hnh