I have been doing research on different types of racks and mounting options and after paying a visit to R.E.I. and estimating over $500 for a single bike roof set up and over $400 for a hitch setup (i would need to get a hitch).

I decided to stop by Wal-Mart on my way home and found a set of Reese 48" cross bars (with the clips included) for about $90 with tax. - The bars are made of steel so they are solid but the clips are all plastic and rubber.
48 In. Cross Bars for Vehicle Side Rails-1391400-Reese Explore

So, now I have to decide which roof bike rack I want....so....any suggestions? I am trying not to spend bookoos and want one that i don't have to take off the tires, and hoping for something that might be available in stores rather than having to order online.