Its something you can do yourself if you have the proper tools including a good jack and jack stands, here's a nice "How To" thread and write up by Smoke Wagon from earlier this year. Just click the link below......

https://www.chevyhhr.net/forums/how-tutorial-library-21/how-front-hub-replacement-38946/

 

Fixed! Decided to just pay my local guy to fix the bearings. Wasn't outrageous as far as price, but the fact that the car rides and sounds like new is crazy. I can't believe I went almost a year thinking it was my crappy tires and living with that terrible noise. The mechanic said he couldn't believe I was still driving it. Oops. Oh well, live and learn I guess. Now on to the brakes!

 

Good to hear you got the 'real' problem fixed.. Enjoy the cruising !!!