Hey leeds, just letting you know, I moved your thread to the HTC Desire forum. Thanks for understanding. And welcome to AF!

 

Your images are probably stored on your SD card to begin with. You could use something like Dropbox to back them up (this can be done automatically, I believe, though I don't do so myself), or just copy them to a computer every now and then.

If you store your contacts as Google contacts and allow contact syncing they will be backed up to your GMail account. You can easily check: log in to your GMail from a browser, click on the red word "GMail" and select "Contacts". Are they there?

If you don't want to save them to Google's cloud, I believe you can use software like MyPhoneExplorer (Windows) to sync or back up stuff. Or there's always the manual approach: in your contacts app select the import/export option (or similar - it's almost 2 years since I used Sense, so don't remember whether HTC messed with menu item names), and export your address book to SD. This will produce a vcard file (.vcf) which you can copy somewhere safe.

 

I use foldersync to backup my sd to NAS.