The Designio Leather Case for the Samsung i730 / i830 is clean, elegant, and nicely priced.
I've used the ClearTouch Crystal screen protectors on my other devices, and would marry them if they were human!
But I really wish I had seen the miniSync - Complete Essential Kit when I was travelling the last few months -- it would have saved me a couple of pounds in my carry-on, and a few hours frustration when I realised I had misplaced my sync cable.

ops:
My phone? Well, the iMate SP5 that I will win, of course! :wink: