Thanks again Foxpup,
You said about the fee amount:
It is proportional to the number of bytes of data the transaction requires, since that's the limiting factor in including transactions in a block.
Isn't this a very similar number of bytes for each transaction? I mean, it's simply adding or removing numbers for public addresses - isn't it?
Another question in that path: Once I send something bitcoins, where does my transaction goes to for all the miners to grab it from?
I understand that all the past data is in the blockchain, but where is the data that is still not in the blockchain?
Thanks again!