I bought Windows Vista ultimate OEM on pre order and wasnt expecting to upgrade for another 6 or so months...
however I activated it 2 weeks ago on my MSI K8N Neo 2 Plat mobo.
Then last week I came into some money so i ordered all new PC.
Asus p5N-E and Intel core duo 2 6600 and 8800 GTX graphics and some new memory.
I was scared that now I had my new hardware i would have to go and spent another £130 on vista ultimate having using got 2 weeks use from it...
Yes fool me
However....
Installed all my new stuff today, Vista askes me to activate windows again... Oh my gosh im thinking at this point...
then i click the activate via phone button
call the number...
Asian women answers and striaght out asks me for the code on the screen..
I read it out...
instantly she relays a code back to me ans asks me to type it into the box's....
click next
WALLAH! activated.. the only question she asked me was to read the code off the screen, VERY made up
so people... dont fear 
however I activated it 2 weeks ago on my MSI K8N Neo 2 Plat mobo.
Then last week I came into some money so i ordered all new PC.
Asus p5N-E and Intel core duo 2 6600 and 8800 GTX graphics and some new memory.
I was scared that now I had my new hardware i would have to go and spent another £130 on vista ultimate having using got 2 weeks use from it...
Yes fool me
However....
Installed all my new stuff today, Vista askes me to activate windows again... Oh my gosh im thinking at this point...
then i click the activate via phone button
call the number...
Asian women answers and striaght out asks me for the code on the screen..
I read it out...
instantly she relays a code back to me ans asks me to type it into the box's....
click next
WALLAH! activated.. the only question she asked me was to read the code off the screen, VERY made up
so people... dont fear 

smug me
simple as mate.