Jim,
I'm fairly new to this detailing stuff, too, so I'll let the experts weigh in. But the tip I picked up on this forum to help with bugs on the front grill is a can of Quick Sealant. Before any road trip or maybe once a week after washing, spray the Quick Sealant on anything that's going to get bugged: grill, headlights, side mirrors, etc. Really makes cleaning the bugs off much easier.
Also, as Greg said, the Rinseless solution or a bottle of Waterless Wash does wonders on bugs.