Dean,
the Charming Chinese Challenge is a 3 coin and ribbon routine by Troy Hooser from his book Destroyers but also sold as a stand alone DVD. The coins I use are from
www.themagicianscoin.com and I got the remilled set as I am working on some edge grip/ mutobe palm/ web grip stuff (nowhere near performance level yet) and the milled edge is great. I use a presentation loosely based on one provided by Raymonde Crow in the book As The Crow Flies, the routine being called and based around a Chinese Pickpocket.
Gadabout Coins Revisited is a Ron Bauer effect and you can get it from RB directly at
www.thinklikeaconjurer.com for $10. A lot for a single trick, but you get more than just a trick. You get a whole performance script and the thinking that goes with it. I love these. The effect is based on the effect in Bobo's - The Gadabout Coins which incidentally was one of the first coin tricks I learned (although I did it poorly back then). This version is very magical, very interactive, far from knucklebusting and gets great reactions. I highly recommend it.
If you like these then I also recommend Holey Moley by Sankey, and if you want to get that then I'd recommend the book Sankey Unleashed which is great value (I don't have the Holey Moley single trick purchase set, but can't imagine it gives you more than the book description). A guy from my magic club gave me a set of English Pennies that he'd drilled holes in (using a Black and Decker) and I carry them everywhere.
Cheers
Shanester