Great question. As this archaic institute I work for only has SQL2000 servers I couldn't run it even if I wanted to.
So, had to do quite a bit of digging around, and as searching for "+=" on google isn't very easy I had to be more determined than usual.
Was worth it though, learnt something knew, got it right, and (hopefully) this year we'll go to SQL 2008R2... we're planning to anyway.
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[font="Comic Sans MS"]"The difficult tasks we do immediately, the impossible takes a little longer"[/font]