Aside from the three best value items which are directly sold by SFI-TripleClicks which you mentioned yourself, there are still some more products that you can buy with ease as an international member. Listed below are some of such products.
1. Wave 3 Starter kit for W 3 membership.
2. New Member Pack (NMP).
3. TC Gift Certificates.
4. E-Books covering various topics.
5. Music downloads.
6. TC Gift Cards.
As you can see, all these listed items are electronic based. As such they have zero cost of shipping. That is largely what makes them cheap and very attractive to international members.
I hope you find this information helpful.