From what I've read, it's okay to use people conditioner (like Pantene, as mentioned above - I've used Tresemme, too). But I think on the shampoo, it's best to find something that will work from the doggie products. It has something to do with different Ph levels.
There are deep cleansing dog shampoos out there. Talk to Jenny (mimimomo) at
toplinepet.com - I've seen a deep cleaning one there before but can't remember which brand it was.