hello,
I'm already using bitcoins for other purpose and it is very easy to handle. As Uwe said in this thread, if you choose an operator who accepts SEPA bank wires, the exchange fee is minimum and the steps are:
1. open an account with the bitcoins exchange operator of your choice, who accepts SEPA
2. transfer the amount of € or other accepted currency for exchange into BTC - of course watch the exchange rate a bit before you deal
3. once you place the order with your BTC operator (choose a limit or take market price) within minutes you have BTC on your account
4. transfer the amount of BTC you want to send to GTru by using the unique "address-code" provided when you open the donation page
in principle it works as easy as internet banking and all BTC operators provide some "user guidelines" or FAQs at their home pages.
my first donation now -with the help of tom- is credited already