Do some reading and attempt in a few days, is honestly the best advice I can give you.
Rushing into it will put you at risk of bricking you're new DS.
Points you should know before attempting..
1) How to insulate you're shorting tool and why
2) The recovery method if things go wrong
3) Practise using the tool without installing flashme, so you are sure you won't power off when doing it for real
... just use the passme2 method for a few days until you are sure. There are loadfs of thread and guides on these forums with pictures and diagrams ect.
edit.. oops, I repeated myself..doh