the tulips may or may not... if you want to move them, wait until the leaves turn yellow and die down to lift them, then let the bulbs dry out and store them until autumn, and replant them in an area where they will not be surrounded by grass and weeds. when you dig them up you will likely find a big bulb with a lot of bulblets around it. you can replant the bulblets seperately and they will grow in time into bigger bulbs. most people just grow tulips as a sort of throwaway bulb, and bin them after a year. i can't bring myself to, so i end up with clumps with lots of little flowers...

the irises should also be moved while dormant - probably in autumn or late summer, after they die down: http://www.backyardgardener.com/article/juneiris.html

don't fuss too much about it if you do *need* to move any of them - almost anything will survive being dug up in a huge lump of soil and immediately replanted and watered. if the roots aren't damaged, and they don't get dry, they never know they've moved.