The second carrier got RAVE reviews from another member here in this thread
http://www.yorkietalk.com/forums/sho...highlight=hobo
It's a really cut bag, and great for sneaking these little guys around. The other two bags are cute too, but if you're looking for something that is discreet, watch for lighter colored bags with mesh panel sides - dead giveaway that you've got a dog with you. Darker colors hide the mesh better. That hobo bag is mesh up near the top towards the handles, but apparently you can't see through it easily.
petedge.com has super cheap supplies (including clothes). They charge a processing fee for orders under $60 I think, but even with the processing fee, it's still a great deal. I've found you just have to be fast on there though - I was on there last night, taking my time..filling up my cart... when I finally got around to checking out, 3 of the things I had wanted were listed as out of stock! I was so disappointed... But anyways - it's a good site to check out.