68 Camaro that doesn't have any gauges and the idiot lights don't work. I really don't feel comfortable driving it without adding these on. Any recommendations on brand, model, etc for temp & oil pressure and tachometer gauges?

There are a lot of good brands of gauges. Autometer, stewart warner, and others.
I prefer electrics, cause all you have to run forward is a couple wires, no oil line or temp capilary tube. If you're sufficiently tricky, you can even use the original wires for the idiot lights!

Autometer makes a 4 gauge pod that fits into the 68-69 console. This gives a nice "born with" look. Or you can do the ole "hang em in an underdash panel", 60-s style.

Here's a pic of the dash in my 68. I've got the stock speedo on the left, reproduction tictoc tac on the right. The autometer console pod holds fuel, oil pressure, water temp, and volts. Above the heater controls, I put a vacuum gauge, wideband AFR, and fuel pressure. All are Autometer electrics.
http://www.Jimragtop.com/TC/gauges.jpg

Thanks again Jim!! We appreciate you input and knowledge and it's great to get such quick replies and not feel all alone out here as a newbie.