Hi fondpondforever,
If you're paying someone in the UK then an electronic cash transfer from you're bank to the other is the best way.
HOWEVER.
If you're paying someone outside the UK by Cash transfer you will be charged by you're bank a huge fee.
A few years ago I checked with my bank and then a few others about electronic cash transfer from the UK to Germany to pay for some Amiga parts and was horrified to find that the banks charged at least £25 for the transfer.
Allthough we in the UK are in the EU we do not use the Euro as currency and this gives the UK banks the freedom to charge what they want to transfer cash out of the UK.
Now things may have changed but it's best to check what the UK banks charge first.
Regards, Michael
aka rockape