Selling 2006 MBP - can I re-init disk and use Snow Leopard?

Hi, folks -
We'll, with less than a day to go it looks as if I've sold my MBP (January 2006). Now I have to wipe the HD and there's the rub...
...I can't find the 'original' DVD that came with it.
What I'd like to know is this: I bought Snow Leopard (DVD) and I'm wondering if I could use Disk Utility on it to securely erase my internal HD and then just install Snow Leopard on the 'blank' HD?
Sorry I've waited so long to ask this question - I want to ship it out Thursday to the highest bidder. I'll also include the Snow Lion disk, of course (it still even has the stickers inside).
Thanks for any expedited answers!
Clinton

I found the two disks that came with my MBP in 2006 - was able to install all the goodies, after I had already installed Snow Leopard: iPhoto, iMovie, etc., and they were all updated (although not to iLife '11, I don't think).
Thanks for the help and advice.
Clinton

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