Where to purchase carpet for basement bedrooms?

[Diane Kruse]

Closing soon on first duplex, and need to finish basement into two bedrooms and family room on each side (6 rooms total, and one hall).  Any suggestions of good places in Denver to purchase carpet?

Went to HD and through this month they have free install if I buy carpet over a dollar per square foot, and can install within 72 hours to 7 days, depending on what I choose.  That sounds pretty good.  They said it would be $1 linear foot for material and to install the tack strips.  That seemed high given material is only $20/400 ft, but they will have to be nailed into concrete?

The person I spoke to recommended a .95 pad with moisture barrier on both sides of the pad.  I am going to allow pets - has anyone used this moisture barrier and did it make a difference protecting the pad and allowing repeat carpet cleaning from pet issues?  Or go cheaper expecting the pad to be replaced regularly?

Reading other forums, nylon with cut pile looks recommended?

Thanks for any advice.

Diane