Take a look at this one: http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=493-1041-ND
The specifications are pretty similar, I think it should work. As for the shipping cost I live in Missouri, USA and select first class mail. Its usually just a few dollars.
Looking up parts is a very handy skill. I first looked at the cap from the tutorial, which is aluminum. I then typed in capacitor into the digikey search box. I clicked on aluminum under the 'capacitors' and I found one that was 16 volts and 20% tolerance at 220 uF, just like the one from the tutorial.
You can do the same thing just as easily!
(If you'll look, you'll notice most of the other properties are the same too.)