just make sure they come with the 14-17mm plastic adapter. most sets seem to come with them, but some dont!!
the washer i used was listed as 5x25mm, got em from a hardware store, if that helps.
craig - forgot... aye, those tyres look the part alright... im sure theres a law of suspension dynamics that states that the vehicle itself should weigh more than its wheels...
im tempted by those, just the postage cost... customs etc.