Jason,
You got fed some crap, but then you didn't.
Of course better and more powerful receiver/seperates will bring out better things in your speakers.
But, that's not to say you can't have a very satisfying experience with "lesser" receivers.
Budget receviers are getting beter all the time. Most receivers in the $5-700.00 price range will have pre-outs that will allow you to add an amp down the road as your budget allows.
If you don't mind e-shopping this is a steal of a deal from an authorized dealer and will me more than adequate for a while.
http://www.onecall.com/PID_18440.htm?PMNID=754