Gee whiz. Can you please provide more information? All Cisco switches are capable of doing 1Gb-to-the-desktop. It entirely depends on your LAN architechture.
2960G, 2975, 3560G, 3560-E, 3750G, 3750-E, 4500, 6500, 6500-E, 7200 are switches that are capable of 1G.
Starting from the 3560 alone, which is a Layer2/Layer3 switch, are being deployed as a "core" switch.
