I'd love to buy Chilli a wheel and some chew toys. She's a very curious chin. The playpen isn't enough for her haha. I'm hoping that sometime this week she'll have a new cage as well.
You can look in the "chin supplies for sale" in the chin classifieds, lots of good vendors who are members there that sell good stuff. As far as a wheel, my chins love their new chinspin from qualitycage.com but you can probably find other good wheels elsewhere just make sure it has a solid running surface, with the wired ones they can possibly break their leg.
You can buy toy parts and hardware from suppliers on here, and a favorite place of mine to shop is www.cabirdnerds.com.
They have a great selection of toy parts, and you can build some really fun things for your chin to destroy. If you order, make sure you let them know in the comments section of your order that the items are for a chin; they like to throw in a little freebie, and you'll want something chin safe, instead of a little plastic thing meant for a bird.
Check your local Craigslist for cages; sometimes you can find some really nice cages for way less than the retail cost of a new cage.
I'm a huge fan of the flying saucer and the chin spin. We only have flying saucers at this point but you may want to get the chin spin since it can be a little quieter.
I've been looking around and I think I don't have to worry to much about the toys and things. I should be going up to west palm to look at cages so I'm excited.