I'm in the process of rigging up my mobile setup. I got a RS Pro-107, NMO lip mount and this antenna:
Maxrad BMAXSCAN1000 [BMAXSCAN1000] - $29.95 : The Antenna Farm :: , Your Two Way Radio Source!

Anyone else using a similar setup? I'm hoping it works as well as I hope but it seems like there is always some weirdness with my plans

About the only worry I have is the fact that I'm not using double-shielded coax. Seems I read somewhere that regular RG58 doesn't work well in short lengths in the 800 band...