the top top top choice would definitely be the P900. but since you're using it with a PDA/notebook, then a Z600 will do nicely. the Z has everything the T61x/630 has, with the addition of stronger RF, better and bigger screen, and not so tiny keypad - which is very comfortable. nobody beats SE in connectivity. if you can wait, around april or may, it's rumored that there will be a T630/Z600 upgrade that will have 1.3 MP camera, video recording and playback, expandable memory, and other neat improvements. but if you want one now, get the P900 or the Z600 - depending on your budget. 🙂