Reccomended switches for dynamic vlans

Can any1 reccomend a brand / model of wireless switches that will support dynamic vlans. I finally have freeradius working very nicely, just need to (hopefully) find an inexpensive solution for the hardware side. I am currently looking into the openwrt distro to see if that will provide dynamic vlans. Thanks for all the help guys, wouldnt have gotten Freeradius setup without this mailing list thats for sure.