If you are after a 3510i on Orange you can get them here for £99.99
Click Here
Data cables are available for the 3510i but you can't use the original version of Logomanager. You need a piece of software called MobiMB which is written by the same guy as logomanager. There is a cracked version of this software but it is a bit tempermental and seems to delete items from your phone. It works a bit like your windows explorer and allows you to drag and drop files from your PC to your phone and Vice Versa.
The 3510i can only handle 4 channel midi files and they can't be too big.

Info on MobiMB can be found Here

There is also a forum on the site that answers a lot of questions about the phone and the software

Hope people can make use of this info.

Shane

[Edited by Shane - 4/10/2003 1:13:52 PM]