macro to Merge Duplicate cells in a column excel

Hello Guys,

I've got an excel sheet which looks like this

Device                        Interface monitored
cisco                              eth0
cisco                              eth1
nokia                        eth0
juniper                        e2
bluecat                        e4
bluecat                        e6
bluecat                        e8
bluecat                        Ethernet-Mgmt
bluecat                        Serial-Mgmt
AS24                        FastEthernet0/48 · AS01
AS25                        FastEthernet0/1 - CoreSwitch2
AS25                        GigabitEthernet0/1 · GBX01-6509-1
AS25                        GigabitEthernet0/2 · GBX01-6509-2

I want the output to be

Device                        Interface monitored
cis                              eth0
co                              eth1
nokia                        eth0
juniper                        e2
bl                              e4                  
ue                              e6                  
c                              e8            
a                              Ethernet-Mgmt
t                              Serial-Mgmt
AS24                        FastEthernet0/48 · AS01
A                                FastEthernet0/1 - CoreSwitch2
S                              GigabitEthernet0/1 · GBX01-6509-1
25                              GigabitEthernet0/2 · GBX01-6509-2


PLEASE NOTE: I only cut the device name down to show that its merged, I dont want the name to be cut down like this in anyway, I just want duplicate names merged with the interfaces intact

I use excel 2007

Thanks

points go to the macro which could do this perfectly

Oh yeah, I already know that merging cells is evil, but I still want it this way. Thanks