Oh, there's also the USGS maps. They're website has it set up into a google type system, just that there's a "topo" button at the top, which then gives you the quad maps.
You can also download each quad in pdf format for free, and print them out.
Not real user friendly system, but once you get em downloaded you have the pdf's and can name them as you choose.
To get there:
http://store.usgs.gov/b2c_usgs/b2c/start/(xcm=r3standardpitrex_prd)/.do
Top left corner just under the search bar, click "map locator".
Make sure the button on the right is chosen "navigate".
Zoom in on area of interest google maps style.
Click the topo tab to view it right away.
If you want to download the maps, on the right side, click the "mark points" button. If you're zoomed enough you see the quadrangle squares.
Click in the square of interest, it puts a marker on it. Now click your marker and download. They're big, probably not work safe, and dial up users (if there's any left) beware.....
