How to accomodate different affiliate links depending on country of visitor?

Afternoon everyone,

So I'm hitting a little snag in my golf website, with regard to affiliate links (for physical products).

I am a member of a number of affiliate programmes worldwide in order to be associated with a top supplier for that countries market, for example American Golf in the UK. However this is producing a problem in regard to which links I have on my review page.

For example, let's say I am reviewing a Taylor Made Driver, now depending on the country of the visitor, I need them to click on a different link. My UK visitor needs to go to site A, US to site B, Aus to site C etc.

Do you have any suggestions on the best way to deal with this?

Also, I understand with Amazon that you are required to provide the link for that countries version in order for you to register the sale. For example sending a UK visitor through to amazon.com will not register any sales becuase they need to click through to amazon.co.uk and the cookie doesn't trace this.

Do you have any suggestions on the best way to deal with this?

My site is a .com does this have any impact on my ability to generate traffic from countries outside the USA? Is there any benefit on having the .co.uk .nz etc and linking them?

If I've made any silly comments above please feel free to point me in the right direction.

Thanks in advance,

G