Bulbs, just dig and plant when you get to your new garden. You may not have blooms the first year, but after they settle in, they will blossom. Bulbs store food for the next year, and as long as they have roots on the bottom, they will survive. If you can't get them in immediately after the move, put them in a box, covered with damp sawdust. They will be happy there for a month or two.
Perennials, dig as much of a root ball as possible and plunk in a pot or sturdy plastic bag. As DirtMechanic suggested, cut the perennial back by one-half. It will recover quickly in its new spot. Wait until new growth on the perennial starts, and then give it a gentle fertilization (about 1/2 the recommended amount for a commercial fertilizer, or an application of composted manure which will be used by the plant as needed.)
I don't think that transplanting will kill your plants. Bulbs and perennials are tough, and can withstand a lot of adversity!