Linux – cannot find USB device to mount

How can I find which /dev/? device to mount my USB hard drive on Red Hat 3 Taroon?  I've been Googling a lot and checked log files and still no clue. I'm trying my last chance with you experts,

# /sbin/fdisk -l

gives nothing about the USB drive.

# lsusb -vv
Bus 004 Device 005: ID 059f:0951 LaCie, Ltd 
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        64
  idVendor           0x059f LaCie, Ltd
  idProduct          0x0951 
  bcdDevice            0.00
  iManufacturer          10 LaCie
  iProduct               11 LaCie Hard Drive USB
  iSerial                 5 9F908FFFFFFF
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           32
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          4
    bmAttributes         0xc0
      Self Powered
    MaxPower                2mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass         8 Mass Storage
      bInterfaceSubClass      6 SCSI
      bInterfaceProtocol     80 Bulk (Zip)
      iInterface              6 MSC Bulk-Only Transfer
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               none
        wMaxPacketSize        512
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x02  EP 2 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               none
        wMaxPacketSize        512
        bInterval               0
  Language IDs: (length=4)
     0409 English(US)

and here is some more which might be interesting

# /var/log/message
May 23 18:17:13 mypc kernel: USB.c: USB disconnect on device 00:1d.7-5 address 4
May 23 18:18:00 mypc kernel: hub.c: new USB device 00:1d.7-5, assigned address 5
May 23 18:18:00 mypc kernel: USB.c: USB device 5 (vend/prod 0x59f/0x951) is not claimed by any active driver.