Originally Posted by Grantinius
By default I'm leaning towards using O2 and a cheap 7290/7230 off eBay, but I'm open to any recommendations you might have.
Make completely certain if you buy a used BB, that the previous user has released the PIN and canceled his/her BlackBerry Account with their carrier. I would ask if it has been used on a corporate network (BES IT Security Policies can be heck to get rid of).
I have noticed some 8700 for sale on this board for 150-200 USD that are good buys.