If you are buying a new macbook today, you are right, it does not matter, they will all be fine.

I was thinking about a 13" white macbook my colleague used to use which I thought had a processor that did not have VT support (as not all Intels do http://www.intel.com/products/processor_number/chart/coreduo...) as there was an issue about it. But, frankly, it sounds like you are probably right and I have made a mistake or am confused (I won't be 100% sure until I can ask him on Monday, and Google is not doing much to help me other than to show how fast HN is being cached - http://www.google.co.uk/search?hl=en&safe=off&sa=X&#... returns this page as the top result minutes after these comments!).

So, good call :)