Shock rebuild

[bigun]

Hi,

I'm thinking about getting my rear shock serviced/rebuilt. I've got the white spring mille shock but I'm unsure how old it is (I've had it on a year and its much better than the original!). I'm doing a lot of two up trips away this year so could do with making sure its tip top for peace of mind more than owt else.

Anybody got any links or details of people who can do it and what sort of cost would I be looking at?

Cheers!