I routinely work UO-14 from my car while moving, using a very simple station. For tracking them I use PocketSat on my Handspring Visor Neo(Palm). It has an alarm that beeps 10 or 15 mins prior to each "good" pass. The station consists of a Yaesu FT-90, connected to a Comet 13 inch cell-look-a-like antenna on the trunk. Works like a charm every time. The key is, really, to get the worst antenna possible, no gain at all is best, and dual bands. Makes for a nice, round, signal pattern. I know some will differ in opinion, but I have used this for almost 2 years now, and it sure beats whats on AM and FM!
Cheers, and good luck.