Got mine, very cool. Good price, too, 20 bucks plus 10 bucks shipping with the small flat rate box. Shaun, if you get a few guys together over there I bet Greg could get 5 or 6 pairs in an international small flat rate box, which is about $40 (a bit over 33 quid).
If you have a Torro M16 these are cheap insurance against future headaches. As far as I know this is the ONLY way to get replacement tracks, Torro doesn't sell them. Here's a little "box opening" video ...