NFL etc Bookies for odds comparison ?

[Datapunter]

I've started work on my own odds comparison program. Going to begin with some of the American sports, NFL first then MLB and others. I know there are quite a few good odds comparison sites out there but somehow they all seem to be missing something. Not all the bookies i want, not the right display, etc... Writing my own will allow me to add features like arbitrage finding, downloads into excell, monitor only preferred bookies, etc... What bookies can you recommend for the American sports ? Which ones in your experiance usually have good prices ?

[Sir Puntalot]

NFL etc Bookies for odds comparison ? Pinnacle would be top of the list, also www.thgreek.com, good prices but both have average websites. ;)