I found the HTC cradle with 2nd battery charger and audio out for $38 shipped on eBay. The seller said it would work with Touch Pro. This is the nice looking cradle that sells for $55+ elsewhere.
Seller ID zhoujing0209
link for item as of now (10/30):
http://cgi.ebay.com/ws/eBayISAPI.dll...m=120324615583
** disclaimer: I have not dealt with this seller before so this is in not a recommendation for the seller! **