My favorite attics are the 60's-70's Fox and Jacobs, Centennial, et al. You don't have to worry about a service floor because the furnace and A/C are on the floor in the garage. The trusses are enough fun in most houses. In these you enter through a hole in the garage ceiling and then crawl on your hands and knees for the first 15-20 ft. through the tiny hole they left in the roof decking. Of course all of the wiring in the house is in the exact same area so that your knees are on the cables as you dodge the roofing nails overhead. Add to this the cobwebs, asbestos insulation and 40 years of insecticide treatments an it makes for a real treat!

Aaron