Ryan,
A couple years ago, I was looking at both the DVC30 and DVC60. As far as I can tell, they use the same optics, CCDs, and recording options. For the additional money, the DVC60 gives you XLR mic connectors, dedicated mic level controls, and a shoulder-mount design. I chose the DVC30 because of the larger LCD display, lower price, and compactness. Also, the fact that Panasonic has an XLR adapter available (though I haven't needed it). BTW, the detachable handle on the DVC30 is very handy. And for "stealth" shooting, take the handle off, and you have a very inconspicuous camera. ;-)
In making your decision, you should consider what type of shooting you'll do. For event videography, you would probably be taking the camcorder off the tripod often, so a shoulder-mount design would be very desirable. Also, if you think you'll be shooting in low light situations which are not under your control, you might consider the Sony VX2100 (a regular responder of these forums swears by the VX2100 for low-light wedding receptions).
Hope this info helped! :)
Ken Hull