I've a 2003 Black Saturn Vue. AWD V8. Took a few hail dents last year..although, I am ashamed to say that it happened overnight while I was sleeping through a nasty storm. Have yet to drive away from a chase with anything more significant than a fresh coat of dirt and mud from fording a couple flooded roads..
I have a laptop I keep with me, but I don't have an aircard yet. Hope to invest in one at some point. In the meantime, I keep my phone with me, and I have a friend who's just as into storm spotting as I am, and he's able to guide me in over the phone. Keep the phone charging, and run my lil bluetooth's battery into the ground.
I'll admit that I'm pretty ill-equipped to go chasing after anything. Have a first aid kid, a blanket, and my cellphone (that is kept on me when not on the charger). No radar, no radio (CB or otherwise), no lights, nothing.
I'm just a guy in his car that likes to take nice long rides into nasty weather. I watch the radar at work, and, thankfully, I'm in a position where I'm allowed to leave early so long as a couple other things are taken care of. If it looks like I can go find a storm to chase down, I mount up, call up my buddy, and hit the road.
Living up in north-central Colorado doesn't help much, though (just 45 minutes south of Cheyenne WY). All the fun stuff's on the opposite end of the state, if in the state at all, and the only excitement we get is almost always a shock to most chasers (please see the weather on May 18th, 2009, and the Windsor Tornado on May 22nd, 2008). We are hardly ever in the danger zone, but we get some freak surprise storms that are real whoppers once in awhile.