Rather than give my thoughts on housetraining, here's a link to a thread that includes alot of good advice from many here a yt. It also includes what I did to housetrain Ginger, since it worked for me! (Well, almost, she still goes inside at "dog club" sometimes, but that's the only place)
http://www.yorkietalk.com/forums/sho...light=schedule
As for as the play pen goes, I've never used one so can't offer any advice there.
Anyway, sounds like you're off to a good start!
Enjoy your new pup!